he had been battling in his sleep. Memory of the thing's high-pitched,

droning buzz still rang in his ears. Then abruptly he realized that the

peculiar buzzing was no mere echo of a nightmare. It was an actual

sound that still vibrated from somewhere within the camp.






Startled into full awakening, Foster propped himself up on one elbow.

The sound was penetrating, but not particularly loud. He was apparently

the only one whom it had awakened. In the gray gloom of the desert

starlight he saw the blanket-shrouded figures of the rest of the men

still deep in slumber.



He realized the source of the sound now. It came from inside the black

walls of Layroh's tent, pitched there in its usual isolation on a slight

rise fifty yards from the sleeping group. Foster grunted disgustedly to

himself. More of Layroh's scientific hocus-pocus! The man seemed to go

out of his way to add new phases of mystery to this crazy expedition of

his through the barren wastelands of the Mojave.



For a solid week now they had been working their way back and forth over

a thirty-mile stretch of desert, while Layroh labored with his intricate

instruments searching for something known only to himself. Whatever

reason Layroh had for recruiting a party of fifteen to accompany him was

still a mystery. So far the men had done practically nothing except

trail along after Layroh while he worked with his apparatus.



It was a state of affairs that caused the men little worry. As long as

they had enough to eat they were quite content. They were

down-and-outers, all of them, human derelicts recruited from the park

benches and cheap flop houses of Los Angeles. They had only one thing in

common: all of them were large and powerful men.



Don Foster was the youngest of the fifteen, and the only college man in

the group. A succession of bad breaks had finally landed him broke and

hungry on a park bench, where Layroh found him. Layroh's offer of ten

dollars a day and all expenses had seemed a godsend. Foster had promptly

jumped at the offer. Layroh's peculiar conditions and rules had seemed

trivial details at the time.



* * * * *



Foster scowled as he lit a cigarette and stared through the gloom at the

violet-lighted tent from which the disturbing sound still came. Seven

days of experience with Layroh's peculiarities had begun to make them a

little irritating. His sternly enforced code of rules was simple enough.

Never approach Layroh unless called. Never touch Layroh's instruments.

Never approach Layroh's tent. Never ask questions.



Layroh neither ate with the men nor mingled with them in any way that

could possibly be avoided. As soon as they made camp each night he set

up his small black tent and remained inside it until camp was broken the

next morning. No one knew whether the man ever slept. All night long the

violet light glowed inside the black tent. The men had wondered about

the unusual color of that light, then had finally decided it was

probably something required by the same eye weakness that made Layroh

wear heavily smoked goggles, both day and night.



Strange sounds in the night as Layroh worked with his apparatus in the

black tent were nothing unusual, but to-night was the first time that

Foster had ever heard this peculiar whining buzz. As he listened it rose

in a sudden thin crescendo that rippled along his spine like a file

rasping over naked nerve-ends. For one shuddering second there seemed to

be an intangible living quality in that metallic drone, as though some

nameless creature sang in horrible exultance. Then abruptly the sound

ceased.



* * * * *



Foster drew a deep breath of relief and ground his cigarette into the

sand beside him. Better try to get to sleep again before Layroh started

some new disturbance with his infernal apparatus.



He was just settling down into his blankets when a movement in the tent

drew his attention back to it. Layroh was apparently changing the

position of the violet light, for his tall figure was suddenly

silhouetted against the tent wall in sharp relief.



Foster started in surprise as another figure loomed darkly beside that

of Layroh. For a moment he thought that the unprecedented had happened

and some member of the expedition was inside those jealously guarded

tent walls with Layroh. Then he saw that the figure must be a mere trick

of the shadows cast by the moving light upon some piece of luggage. It

looked like the torso of a man, but the head was a shapeless blob and

the arms were nothing more than boneless dangling flaps. A moment later

the light moved on and both shadows vanished.



Foster grinned sheepishly over the momentary start the distorted shadow

had given him, and determinedly rolled himself in his blankets to sleep.

It was after sunrise when he awoke. The rest of the camp was already up,

but there was one member of the party missing.



Jeff Peters' empty blankets were still spread there on the sand, but no

one had seen the big Negro since the camp turned in the night before.

The expedition's daily travels under the blazing sun of the Mojave never

had appealed particularly to Jeff, and he had apparently at last made

good his repeated threats to desert.



* * * * *



The men were just getting up from breakfast when Layroh finished packing

his tent and apparatus in his sedan, and started down toward the camp.

As usual, he halted some five yards away from them, standing there for a

moment in stony silence.



Physically, the man was a giant, towering well over six feet in height.

On several occasions when the expedition's cars had stalled in deep sand

he had strikingly demonstrated the colossal strength in his tall body.



His aquiline features, his red-bronze complexion, and his long black

hair, were all suggestive of Incan or Mayan ancestry. No one had ever

seen any trace of feeling or emotion upon his impassive features. Foster

would have given a good deal for just one glimpse of the eyes hidden

behind the dark-colored goggles. In their depths he might be able to

find some reason for the tingling surge of nameless dread that Layroh's

close approach always inspired.



Layroh noted Jeff Peters' absence at once. "We seem to have our first

deserter," he commented evenly. His voice was as richly resonant as the

tone of some fine old violin. He hesitated almost imperceptibly between

words, like one to whom English was not a native tongue.



"It does not matter," he continued indifferently. "We can spare one man

easily enough. To-day we shall continue toward the east. Pack the truck

at once. We are ready to start."



Without waiting for an answer, he turned and strode back to the sedan. A

curious thought struck Foster as he stared after Layroh's retreating

figure. What if the oddly distorted shadow he had seen against the tent

wall last night had really been that of a man--had been that of Jeff

Peters?



* * * * *



For only a moment did Foster mull over the idea. Then he promptly

dismissed it as being absurd. He could imagine no possible reason for

Jeff Peters being in Layroh's tent in the middle of the night. The

shadow had been only remotely like that of a man, anyway. There had been

neither head nor arms to the figure, only shapeless masses totally

unlike anything human.



They finished packing the breakfast stuff in the supply truck, and the

party started out along the trail with Layroh's sedan leading the way.

For nearly two hours they followed their usual routine, working steadily



eastward and stopping at regular intervals while Layroh made his

methodical tests with his instruments.



Then near the end of the second hour something happened that abruptly

sent a thrill of excitement through the entire expedition. Layroh had

just set his apparatus up on a small sand dune beside the trail. The

mechanism looked somewhat like a portable radio, with two slender

parallel rods on top and a number of dials on the main panel.



Layroh swung the rods slowly around the horizon while he carefully tuned

the various dials. It was when the rods pointed toward the southeast

that there suddenly came the first response he had ever received. From

somewhere within the mechanism there came a faint staccato ripple of

clear beauty like countless tiny hammers beating upon a crystal gong.



* * * * *



The sound galvanized Layroh into the nearest approach to emotion anyone

had ever seen him display. The giant moved with the furious speed of a

madman as he returned the apparatus to the sedan and swung the car out

across the sand toward the southeast. After a mile he stopped and

hurriedly set the apparatus up again. This time the crystalline signal

came in with a noticeable increase in volume.



From then on the progress of the party became a mad dash that taxed the

endurance of everyone except Layroh himself. After the first hour they

entered a terrain so rugged that the cars had to be abandoned and they

fought their way forward on foot. Layroh was forced to turn the

radiolike apparatus over to one of the men, while he himself carried

another mechanism that consisted of a heavy silver cylinder with four

flexible nozzles emerging from one end.



They held as rigidly as possible to a straight line toward the

southeast, scrambling over whatever obstacles intervened. Their only

stops were at regular intervals when Layroh checked their course. Each

time the crystalline signal came in with greater volume.



Their objective appeared to be a cone-shaped peak several miles ahead

that loomed up high above the surrounding rock masses. The oddly shaped

mountain was identified by one of the men who had once been a Mojave

desert rat.



"Lodestone Peak," he announced succinctly. "Full of iron, or somethin'.

A compass always goes haywire within a radius of ten miles of it."



* * * * *



It was early afternoon when they finally arrived at a level area at the

base of the mountain. For the last two miles Layroh had not stopped long

enough to make any tests. Now he set the radiolike apparatus in place

some ten yards from the face of a sheer cliff that towered high above

them.



The crystalline signal came in a rippling flood. He spun the dials. The

sound ceased, and the pointing rods glowed with an aura of amber light

at their tips. Swift and startling answer came from deep within the

heart of the cliff, a mighty note of sonorous beauty like the violent

plucking of a string on some colossal bass viol. So powerful was the

timbre of the pulsing sound that the entire side of the mountain seemed

to vibrate in harmony with it.



Layroh snapped off the apparatus and the sound ceased. Carefully

searching until he found a certain spot on the cliff face, he stepped

close to it and unlimbered the nozzles of the silver cylinder. Foster

noted that at the place selected by Layroh there was a five-foot-wide

stratum of slightly lighter-colored rock extending from the sand to a

point high up on the cliff face.



From the metal nozzles of the cylinder there spurted a broad beam of

dead black. There was a searing flash of blue-white flame as the black

beam struck the cliff face. There followed a brief second during which

the rock melted into nothingness in the heart of that area of blue

radiance. Then the stabbing beam bored steadily on back into the cliff

like the flame of a blow torch melting a way through a block of butter.



Layroh adjusted the nozzles until the black beam was a solid shaft of

opacity seven feet in height and nearly five in width. The hole in the

cliff became a tunnel from which blue radiance surged outward in a

shimmering mist as the black beam steadily bit deeper into the rock.



* * * * *



"Follow me," Layroh ordered the men, "but do not approach too close."



He stepped forward and entered the mouth of the tunnel. Shaken by the

spectacular thing occurring before their eyes, yet, driven by curiosity

as to what might lie at the end of that swift-forming tunnel, the men

came crowding obediently after him. A moment later they were within the

passage, stumbling dazedly forward through the billowing fog of bluish

radiance. There was an odd, almost electric, tingle of exhilaration in

that radiant mist as it surged about their bodies.



Fragments of almost-forgotten scientific lore flitted through Foster's

brain as he groped for a clue to the action of the strange ray. Not

quite complete disintegration of matter, but something very close to

it--probably the transformation of matter into radiant energy, an

ingenious harnessing of the same forces that are forever at work in the

cosmic crucibles of the universe's myriad suns.



The action of the black ray was amazingly rapid. They were forced to

hurry forward at a fast walk to keep their distance behind Layroh. The

vertical stratum of lighter-colored rock continued straight back into

the heart of the mountain. It apparently served as a guide. The color of

the blue flame-mist changed perceptibly whenever Layroh allowed the

black ray to stray into the rock at either side of it.



* * * * *



For nearly two hundred yards they bored their way steadily into the

mountain, their path gradually sloping downward. The walls and floor of

the swift-forming tunnel were as smooth and hard as though glazed with a

film of diamond.



Then abruptly Layroh shut the black ray projector off as the rock ahead

of them ended and they broke through into another larger tunnel, dimly

lighted by small globes of violet radiance set at intervals in the

glassy ceiling. After thirty yards of travel along this tunnel they

found their way barred by a massive door of copper-colored metal.



At Layroh's imperious gesture the men halted a dozen feet back of him in

the tunnel while he brought something out of his leather belt-case.

Foster was the only one of the group who was near enough to see that the

object was a small tube closely resembling a pocket flashlight.



The only break in the surface of the great door was a six-inch disk over

near its right-hand edge. Layroh slid this disk aside. Into the opening

that was revealed he sent a series of flashes of colored light from the

tube--two red, three green, and two blue. The colors were the

combination to the light-activated mechanism of the lock. At the last of

the blue flashes there was a whirring of hidden mechanism and the portal

swung slowly and ponderously open.



* * * * *



Layroh beckoned to the men to follow him as he strode swiftly on into a

vast room that was flooded with bluish light from scores of the radiant

globes. As the men passed through the door it reached the limit of its

opening swing and began automatically closing again behind them, but

they were too completely engrossed in the scene before them to notice

it.



They were in a great cavern whose glass-smooth floor was nearly a

hundred yards square, and whose ceiling was so high that it was lost in

the shadows above the maze of metal girders and cables that made a

webwork some forty feet overhead. There was a feeling of almost

incredible age about the place, as though it had been sealed away there

in the heart of the mountain for countless centuries.



On every hand there was evidence that the cavern and all its contents

were the products of a race of beings whose science was one that was

utterly strange to that of the modern world. At the end of the room

where they stood were row after row of different machines, great engines

with bodies of dull silver metal and with stiltlike legs and jointed

arms that made them look like giant metal insects. Foster could

understand few of the details of the machines, but he felt that in

efficiency and versatility they were far ahead of Earth's best modern

efforts.



Grouped together in the center of the cavern were many assemblies of

apparatus linked together by small cables that descended from main

cables in the girder-crisscrossed ceiling overhead. There was a soft

hissing of sparks leaping between terminals and a steady glow from oddly

shaped tubes which indicated that the mechanisms were still functioning

in silent and efficient performance of their unknown tasks.



* * * * *



The piece of apparatus nearest the door was an upright skeleton

framework of slender pillars housing in their center a cluster of coils

set around a large drumlike diaphragm. Foster wondered if this were not

the signal device with which Layroh had tuned in his own portable

instrument. The principal piece of mechanism in the central space,

however--a great crystal-walled case filled with an intricate array of

rods and wires--was something at whose purpose Foster could not even

guess.



Layroh strode on past the central apparatus toward the back wall. The

men followed him. Then as they rounded the apparatus and saw for the

first time the incredible things lining that rear wall, tier upon tier,

they stopped short in utter stupefaction. Before them was Life, but Life

so hideously and abysmally alien that their brains reeled in horror.



Great shining slugs slumbered there by the hundreds in their boxlike

crystal cells, their gelatinous bodies glowing with pale and

ever-changing opalescence. The things were roughly pear-shaped, with

the large end upward. Deep within this globular portion glowed a large

nucleus spot of red. From the tapering lower part of each slug's body

there sprouted scores of long slender tendrils like the gelatinous

fringe of a jelly-fish.



The things measured nearly four feet in height. Each was suspended

upright in an individual glass-walled cell, its body supported by a loop

of wire that dropped from larger cables running between each row of

cells. There was steady and exhaustless power of some kind coursing

through those cables. Where they branched at the end of each cell-row

there was a small unit of glowing tubes and silver terminals whose tips

glowed with faint auras of leaping sparks.



* * * * *



The slugs were dormant now but the regular changes in the opalescent

sheen which coursed over their bodies like the slow breathing of a

sleeping animal, gave mute evidence that life was still in those

grotesque forms, waiting only to be awakened.



Fascinated by the tiers of glowing things, one of the men started slowly

forward with a hand outstretched as though to touch one of the cells.

His advance aroused Layroh to swift action. The bronze-faced giant

whirled and swung the nozzles of the black ray projector into line with

the man.



"Back, yaharigan, back!" he ordered imperiously. "The Shining Ones

have slumbered, undisturbed for a thousand centuries. They shall not

awake from their long sleep to find the filthy fingers of a yaharigan

defiling their crystal cells. Back!"



Panic-stricken at the threat of the black ray, the man stumbled backward

to join his fellows. Layroh's startling statement of the incredible age

of the shining things in the cases erased all thought of the

expedition's code of rules from Foster's mind.



"You mean that those--those things--moved and lived in the outside

world a hundred thousand years ago?" he asked dazedly. "But there is no

indication of there ever having been any such creatures among Earth's

early forms of life."



* * * * *



"Fool!" There was angry disdain in Layroh's resonant voice. "They who

slumber here are a race born far from this planet. They are the Shining

Ones of Rikor. Rikor is a tiny planet circling a wandering sun whose

orbit is an ellipse so vast that only once in a hundred thousand years

does it approach your solar system. Rikor's sun was nearly dead and the

Shining Ones had to find a new home soon or else perish. Then their

planet swung near the Earth, and their scouts returned with the news

that Earth was ideally suited for their purpose. There were barely five

hundred of the Shining Ones all told, and they migrated to Earth in a

body."



"And they've been in this cavern ever since, sealed up like tadpoles in

fish bowls?" The question came from Garrigan, a strapping sandy-haired

Irishman whose first blind panic at the black ray's menace was swiftly

giving way to curiosity.



"It was your ancestors who drove the Shining Ones into their retreat

here," Layroh answered grimly. "When the Shining Ones arrived upon Earth

they found the planet already in the possession of a race of human

beings whose science was so far advanced that it compared favorably even

with the science of Rikor. This race was comparatively few in numbers,

and was concentrated upon a small island-continent known as Atlantis.

Shining Ones and Atlanteans met in a war of titans, with a planet as the

stake. The Shining Ones were vanquished in that first battle. They lost

a fifth of their number and barely half a dozen of their smallest space

ships escaped destruction.



* * * * *



"Planning a new and decisive assault, the Shining Ones planted atomic

mines throughout the foundations of Atlantis. But the Atlanteans struck

first by a matter of hours. At a set moment every volcanic vent on the

Earth's surface belched forth colossal volumes of a green gas. Though

that gas was harmless to creatures of Earth, it meant slow but certain

death to all Rikorians. Furiously the Shining Ones struck their own

blow, setting off the cataclysmic explosion that sank Atlantis forever

beneath the waters of the Atlantic. Scarcely a handful of Atlanteans

escaped, but Rikor's victory was a hollow one. Earth's air was so

thoroughly poisoned that it would require centuries of slow ionization

by sunlight to again make it fit for Rikorian breathing. The Shining

Ones had at most three months before the slow poison would weaken their

bodies to the danger point."



"Why didn't they go back to their own planet, then, where they

belonged?" broke in the truculent voice of Garrigan again.



"That was impossible," Layroh answered impatiently. "The few space ships

they had left would carry barely a score, and Rikor's sun was already so

far advanced in its swing away from Earth that there would be time for

only one trip. There was only one chance for survival remaining to them.

They knew of a process of suspended animation in which their bodies

could survive almost indefinitely without being harmed by the Atlantean

gas. They would require outside aid to be awakened from that dormant

state, so a small group of them must remain active and embark for Rikor,

to try to survive there until Rikor returned near enough to the Earth

for them to again cross the void.



* * * * *



"The dormant ones must have a retreat so well hidden that they would not

be disturbed during the thousand centuries that must elapse before they

could be awakened. The Shining Ones sped back to their base on the North

American continent and in the three months remaining to them they

prepared this cavern here in the heart of the mountain. Radium bulbs

supplied its light. For the unfailing source of electrical energy needed

to course through the dormant bodies and keep them alive they tapped the

magnetic field of the planet itself, the force produced as the Earth

rotates in the sun's electrical field like an armature spinning within

the coils of a dynamo."



It was Foster who broke in with the question that was in the thoughts of

the entire party. "Just where do you come in on all this?" he asked

bluntly. "And what was your reason for bringing us here?"



There was blazing contempt in Layroh's rich voice as he turned toward

Foster. "Yaharigan of Earth!" he jeered. "Your brain is as stupid as

the feeble brains of those true yaharigans of Rikor whose physical

structure your human bodies so closely resemble. Have you not guessed

yet that I am no contemptible creature of Earth--that this human shell I

wear is nothing but a cleverly contrived disguise? Look, yaharigans,

look upon the real face of the one who has come to restore the Earth to

its rightful masters!"



With a single swift movement, Layroh snatched the colored goggles from

his face and flung them aside. There was a smothered gasp of horror from

the group. They saw now why Layroh had always worn those concealing

lenses. There were no eyes in that bronzed face, nothing but two empty

sockets. And from deep within the skull there glowed through those

gaping sockets a seething pool of lurid red--the nucleus spot of a

Shining One!



* * * * *



Reeling backward with the rest of the men from the horror of the glowing

thing within the skull, Foster dazedly heard Layroh's resonant voice

ring exultantly on: "My ancestors were among the twenty Shining Ones who

remained active. After placing their comrades in their long sleep those

twenty survivors set up signal apparatus in the cavern so that it could

be found again no matter how much the outside terrain might change. Then

they filled in the entrance tunnel with synthetic rock and embarked for

Rikor.



"There upon that dying planet generations passed. When the time came

that Rikor's sun again neared Earth, so rigorous had life become upon

Rikor that only six Rikorians remained alive. In order to increase our

chances of winning through on the perilous trip to Earth, each of us

traveled in a separate space ship. The precaution was well taken. We

encountered a dense cloud of meteors near Alpha Centauri and I was the

only survivor."



Layroh gestured briefly toward the rows of many-armed metal engines.

"There are the normal vehicles for a Shining One's body--armored

machines powered by sub-atomic motors and with appendages equipped for

every task of peace or war. This synthetic human figure which I now wear

was donned only in order that I might have no difficulty in mingling

with Earthmen while I sought the cavern. It is an exact replica of the

body of an Atlantean, including artificial vocal chords. Even the

colored goggles necessary to hide the glowing red of my nucleus are

similar to those worn by Atlantean scientists while working with their

ray machines--"



* * * * *



Layroh was abruptly interrupted by a scream of maniacal fury from Olsen,

a shambling Swede who stood near the edge of the group. Ever since

Layroh's unmasking the Swede had been staring at him with eyes rigidly

wide in terror like those of a bird confronting a snake. The steady

contemplation of the horror of the blaring red thing behind Layroh's

empty eye-sockets had apparently at last driven the Swede completely

insane. He snatched a revolver from his belt as he leaped forward, and

fired once. His shot struck Layroh in the forehead.



The bullet ripped through the surface of Layroh's face, then glanced

harmlessly aside as it struck metal underneath. Layroh never even

staggered from the impact. The black ray from the projector caught Olsen

before he could fire again. There was a searing flash of flame, then a

swiftly melting cloud of blue-white radiance, and the Swede was gone.



Layroh swung the projector back to menace the others. "I had forgotten

that yaharigans of Earth have weapons that might be annoying," he said

evenly. "Two more of you have pistols--Garrigan and Ransome. Toss them

away from you at once. Hesitate--and the black ray speaks again."



Sullenly the two men obeyed his order.



"Good," commended Layroh. "In the pits where you are going you will have

little use for pistols. When I again take you from those pits you will

quickly learn why I brought you with me. Yaharigans, I have called

you, and yaharigans you shall be--Earthly counterparts of those

miserable beasts of Rikor who have for ages been bred only for the one

purpose of supplying food for the Shining Ones. I knew that when I found

the cavern the process of awakening the Shining Ones would require that

they be carefully fed with the calcium and lime from the bones of living

yaharigans, the normal food of all Rikorians.



* * * * *



"The few yaharigans I had brought from Rikor were consumed on my long

trip to Earth. So I had to recruit a party of human beings to go with me

and serve as the necessary food for the Shining Ones. My search for the

cavern took longer than I had expected for I knew only its approximate

location. My own body at last had to have sustenance. Last night the

Negro, Jeff Peters, provided that sustenance.



"I shall feed those of you who remain to the first group of Shining Ones

to be awakened. After that we shall be strong enough in numbers to sally

forth and capture ample food for awakening the rest of our comrades.

Then in our full strength we shall emerge and again become masters of a

planet upon which your crude race shall exist only as yaharigan herds

for our sustenance."



Layroh's resonant voice ceased. Keeping the black ray projector alertly

covering the men, he strode over to a closed metal door in the wall just

beyond them. He took a small tube from a rack beside it and opened the

door by sending a flash of yellow light into the mechanism of its lock.



"Into the pits until I am ready for you," he commanded curtly. "They

were first constructed for keeping our own yaharigans while we were

working in the cavern, and they should serve just as well for you."



* * * * *



With the memory of Olsen's tragic fate still fresh in their minds, the

men obediently filed into the next room, with Layroh bringing up the

rear. The room was little more than a single large cell carved from the

living rock, and lighted by a single radium bulb in the ceiling.



Its smooth glasslike floor was broken at intervals of ten feet by

circular pits fifteen feet deep. At Layroh's order the men entered the

floor-pits, one man to each pit. As Foster lowered himself into one of

them he saw how grimly efficient a trap the pit was.



An unusually tall and active man might be able to jump high enough to

touch the edge, but the effort would be useless. Those glass-smooth

edges were so cunningly rounded that they offered no possible purchase

for clutching fingers. The diameter of the pit, ten feet, was too great

to permit any effort at climbing by wedging one's body between two

opposing walls.



Layroh sent every man into the pits but one.



"You will return to the cavern with me, Carter," he ordered. "I have

need for you at once."



They heard the door clang shut as Layroh and Carter left the pit room.

Chaos reigned as the men flung their bodies against the pit walls in

efforts to escape. There was the click of metal as several of them tried

with pocket knives to chip finger-holes in the walls, but the glassy

surfaces were of diamond hardness.



* * * * *



Foster's brain was numb with despair as he began to realize the true

meaning of those sleeping things out in the cavern. Death in some

unknown and horrible form was imminent for himself and his companions,

he knew, but his thoughts were going far beyond that, to the time when

the Shining Ones would emerge in all their resistless power to ravage

and conquer a helpless world.



There could be little doubt as to the futility of Earth's best efforts

against the advanced science of these invaders from far-off Rikor.

Encased in their colossal machine-bodies of glittering metal, and armed

with such terrible weapons as the black ray projector, the Shining Ones

would be as invulnerable as men trampling an anthill underfoot.



The future status of mankind upon the Earth would be that of vast herds

of human yaharigans, probably bred for ever greater bone content as

men breed cattle for superior food values. The picture aroused Foster to

a fury of cold desperation. If they could only escape from the pits

there might be a chance to trap Layroh and slay him before he brought

those hordes of opalescent slugs to life. Then escape from the cavern

itself would be an easy matter. Even if the outer door had been locked

since they passed through it Layroh had the light-key and Foster

remembered the combination.



Half a dozen wild schemes flitted through Foster's brain, only to be

discarded as futile. Then suddenly he thought of something that had

every chance of success if only they were given time enough. Layroh in

his arrogance had forgotten that his prisoners were not naked brutes of

Rikor. In the very clothing the men wore was the means of escape from

the pits.



* * * * *



Foster's voice cut through the babel in the room until he gained

everyone's attention.



"Our only chance for escape is to get a rope between two pits," he said

curtly. "Then one man can climb out while the other holds the rope.

We'll have to make that rope from our clothing. No one man can get a

strip strong enough, so we'll have to work the strips to a central man

who can braid them into a single heavy rope. I'm near the center. Get

the strips to me. Tear your clothing into ribbons, and knot them

together. Use your knives, watches, anything to weight one end of the

strip. Then cast until you get contact with the pit next to you. That

way all the strips can be worked to me."



A period of feverish activity followed while the men went to work.

Layroh also was busy. Through several narrow ventilating slits high in

the cavern wall they heard the hum of machinery.



The first of the men finished knotting their ropes together. With

weighted ends muffled to deaden their fall upon the rock floor, they

began casting to get contact with their neighbors.



Success came slowly. There were often scores of blind casts made before

a weighted end came into an adjoining pit. But the time finally came

when Foster had a twenty-five-foot length of rope strong enough to bear

his weight. He already had a single strand making contact with Garrigan

in the next pit. Garrigan drew the heavier rope in to him, then acted as

an anchor while Foster climbed to the floor above.



* * * * *



His downstretched hand pulled Garrigan to freedom. Getting the other men

up to the floor was the work of but a few moments. They were a

weird-looking crew in the torn fragments of clothing that remained to

them. Foster stationed them beside the locked cavern door so that they

would be hidden behind it when it opened.



"Wait till Layroh is safely inside," he ordered, "then rush him. Get

that black ray thing out of commission first. Without that, we should be

more than a match for him. In the meantime you come with me, Garrigan.

Maybe we can get a look into the cavern."



By climbing on Garrigan's broad shoulders Foster found that he had a

clear view through one of the narrow ventilating slits. Layroh had made

efficient use of the time since he had left the pit room. Suspended from

softly glowing wires in the large central glass case was a circular

group of ten of the Shining Ones.



Foster's eyes widened in horror as he saw the object in which the

trailing tendrils of the luminous slugs were sunk. It was the naked body

of Carter. As those sucking tendrils drew out the substance of his

skeleton, Carter's body was changing slowly, horribly, sinking into a

flabby mass of puttylike flesh.



The dormant bodies of the great slugs glowed perceptibly brighter as

they fed, and the pulsations of opalescence quickened. The Shining Ones

were beginning to awaken. Faint but unmistakable there came to Foster's

ears a low singing drone from the group.



He shuddered. He knew now why Jeff Peters' shadow had seemed so

grotesquely boneless. That droning buzzing sound he had heard from the

black tent had been the feeding cry of a Shining One--of Layroh. Then,

his horrible feast ended, Layroh had blasted what remained of his victim

into nothingness with the black ray.



* * * * *



Foster was abruptly startled into action as Layroh turned from watching

the central case. Picking up the black ray projector, he started toward

the pit-room door. Foster scrambled down. With Garrigan he joined the

tensely waiting group beside the door.



There was the sound of the mechanism unlocking. The door opened and

Layroh came striding in. In a concerted rush the men were upon him.

Foster's hurtling dive for the black ray projector knocked the apparatus

out of Layroh's hands. It crashed to the floor with a violence that left

it shattered and useless. Swept off his feet by the savage fury of the

unexpected attack, Layroh went to the floor beneath the writhing group

of men.



The metal sinews of his magnificent body brought him to his knees in one

mighty effort, but the numbers of his assailants were too great. Again

he was beaten down while powerful hands tore at his limbs. The metal of

the ingenious machine that was Layroh's body began twisting and giving

way before the savagery of the assault.



He staggered to his feet, flinging the men aside in one last mad surge

of power, and lurched toward the cavern. His effort to slam the door

closed behind him was blocked by the swift leap of two of the men.

Layroh staggered on into the cavern. Then suddenly the torn framework of

his legs collapsed completely, and he fell heavily on his back.



The men surged forward with a shout of triumph. But before they could

reach Layroh's prostrate figure one of his hands reached up and opened

his skull as one opens the hinged halves of a box. From within the skull

there rolled a great shining slug, a sinisterly beautiful figure of

glowing opalescence, with a scarlet nucleus! For one breath-taken

instant it rose to its full height of four feet, hesitated, as if warily

regarding the horror-struck men, then with tendrils pressed into its

body until it was nearly spherical, the slug that had been Layroh rolled

like a ball of living fire across the cavern toward the cluster of

machines. Foster snatched up one of the discarded pistols from the floor

and fired twice at that hurtling globe of flame, but both shots missed.



A moment later the slug reached the machines. It fled swiftly past a

group of smaller mechanisms and selected a gleaming metal colossus whose

size and formidable armament indicated that it was designed primarily as

an instrument of war. With whipping tendrils the slug swarmed up one of

the metal legs and into a small crystal-walled compartment in the

forward end of the machine.



There was the crackling hiss of unleashed sub-atomic forces somewhere

within the metal body. The machine moved in fumbling uncertainty for a

moment as the slug fought to get control of mechanism that had lain idle

for a thousand centuries! Then swiftly full control came, and the

machine came charging toward the men.



They broke in wild panic before the onslaught of the metal monster. As

an engine of war it was invincible. Six feet in height and nearly twenty

feet in length, it maneuvered upon its jointed legs with bewildering

speed and efficiency. A score of rodlike arms projected from the main

trunk, arms that were equipped for nearly every purpose. Some ended in

pincers, others in barbed points, and others in clusters of flexible

metal tentacles.



One of the men screamed in terror and broke for the door back into the

pit room. Foster flung him aside and slammed the door shut and locked.



"You'd be trapped like a rat in there," he grated. "Our only chance is

to stick together and fight it out."



* * * * *



It was a chance that seemed increasingly slight as they tried to close

in upon the machine. Garrigan had recovered the other pistol from the

floor. He emptied it into the metal monster at a range of less than ten

feet but the bullets glanced harmlessly off as from armor plate.



The machine fought back with deadly efficiency. One of the

dagger-pointed arms impaled a man like a speared fish. Pincers closed

upon the neck of another, half tearing his head from his body. With the

strength of desperation the men wrecked the pillars-and-diaphragm

apparatus and from the debris tore metal fragments to serve as clubs.

Their blows against the thing's pistonlike legs failed to even shake it.

Two more men died before the grim efficiency of the stabbing arms.



Foster had held the remaining bullets in his own pistol, waiting for a

chance to use them against some vulnerable spot in the machine, but he

saw none. There was a bare chance that if he could gain the machine's

back he might find some crevice through which he could send a telling

shot. Cramming the pistol into his belt, he watched his chance, then

used the debris of the wrecked apparatus as a stepping stone for a

running leap that landed him solidly on top of the metal bulk just back

of the crystal compartment.



He fumbled for the pistol in his belt, but before he could even touch it

a tentacle-tipped arm lashed down toward him, picked him off the thing's

back, and flung him with terrific force high into the air....



* * * * *



For a breathless moment he saw the girders and cables of the ceiling

hurtling toward him. Instinctively he grabbed with both hands at one of

the lower girders as his body thudded into it. His clutching fingers

slipped momentarily, then held, leaving him dangling there at arms'

length thirty feet above the floor.



His wits swiftly clearing from the shock of that mighty toss through

space, Foster scrambled up on the narrow girder. Sitting astride the

metal beam, he looked down at the scene below.



The battle down there was nearly over. The glowing slug in the machine

was now obviously trying to capture the remaining men alive for further

use. Instead of slaying, its lashing arms fought only to stun and

cripple.



Six of the men still remained on their feet but they were trapped in an

angle between heavy apparatus and one of the walls. In the central case

the ten semi-dormant slugs, still too inactive to take part in the

battle themselves, seemed watching the conflict with great unwinking

eyes of crimson.



Foster groaned. The metal colossus was too powerful for their feeble

efforts. It would take a bolt of lightning to have any effect upon that

mighty engine of war. At the thought, Foster's heart leaped in sudden

inspiration. There was lightning, the terrific electrical force of a

spinning planet, in the cables up here among the girders, if he could

only release it.



* * * * *



Slightly below his position and barely six feet away from him one of the

main power cables of the cavern was suspended from heavy insulators. If

the cable had ever had an insulating sheath around it the fabric had

vanished during the centuries for the dull silver-colored metal was now

completely bare.



If that naked cable could be dropped into contact with Layroh's

machine-body, the entire power of one of the cavern's main lines would

be grounded through the metal of the machine. The position of the cable

with regard to where the machine was now, was perfect for the scheme. If

Foster could sever the cable just opposite him there was an excellent

chance that the longer one of the free ends would drop directly upon

the machine.



And in his possession he had a possible means of severing that

cable--the pistol that was still crammed in his belt. There were four

shots remaining in the pistol. The cable was barely half an inch thick,

but the range was so short that he could not very well miss. If the

silver-colored metal was as soft as it looked, the heavy bullets should

be enough to tear through it.



Foster thrust the pistol as close to the cable as he could reach. Then,

with the muzzle scarcely a yard from the silver strand, he fired. The

heavy bullet caromed from the cable's surface, but not before it had

torn a gash nearly a third of the way through it.



There was a sudden cessation of activity below as the slug in the

machine looked up at the sound of the shot. Swift inspiration seized

Foster and he promptly sent his next shot down at the machine itself.

The bullet glanced harmlessly off, but his ruse worked. Apparently

believing that Foster was merely trying another futile attack upon it,

the machine turned its attention back to the men it had cornered. Foster

could be attended to later.



* * * * *



Foster slipped and nearly fell just as he fired at the power line the

next time and his shot missed. That left him only one remaining

cartridge. Aiming with infinite care he sent his last shot smashing

squarely into the part of the cable remaining intact.



It trembled and sagged as the bullet cut the remaining metal nearly

through. Only a bare thread was left, yet that thread held. Sick at

heart over the narrow margin by which his effort had failed, Foster

stared in despair at the nearly severed cable. It needed only one solid

blow to tear that last thread of metal apart, but the cable was just

far enough away to be effectively beyond his reach.



Then suddenly Foster's eyes narrowed. There was a way remaining by which

the weakened power line could be broken. A single hurtling dive out and

downward from the girder would send his own body crashing squarely into

the metal strand. Beneath the smashing impact of his one hundred and

eighty pounds the nearly severed cable was certain to break.



Foster shuddered as he realized what that dive into space would mean. He

was not thinking of the fall itself. The thirty-foot drop to the

diamond-hard floor of the cavern would in all probability mean death or

broken bones, but that was a hazard which Foster was willing to take.



It was the thought of what would happen in the brief moment of contact

when his body met that bare cable that drained the color from Foster's

face. There was the terrific electrical energy from a spinning world

coursing through that silver strand, a force that in all probability was

powerful enough to instantly char a human body to a glowing cinder!



* * * * *



If he could only insulate his body at the point where it would touch the

cable he might have at least a chance of surviving the contact. The only

possible insulating medium he had was the clothing he wore--a pair of

heavy corduroy trousers and the sleeveless remnant of a woolen shirt.

They could be rolled into a bundle that would be bulky enough to at

least give him some protection from contact with the bare cable.



Laying the empty pistol on the girder beside him, he stripped as quickly

as his precarious perch would permit. Then, using the pistol as a

central core to give body to the bundle, he swathed it deep within the

folds of the clothing, making a thick roll that he could hold in his

right hand as he leaped.



At best the insulating qualities of the roll would be far from perfect,

yet it might serve to minimize the effects of the cable's charge enough

to give him some chance of escaping alive. His contact with the power

line would be only for the fractional part of a second and his body

would be completely in the air at the time, out of direct contact with

anything through which the cable's charge might ground.



Foster crouched on the girder, his eyes fixed upon the scene below as he

tensely waited for the best moment to make the leap. The machine had

shifted its position slightly while he had been stripping. It was now

too far over the right to be under the cable when it fell.



For a moment as the machine maneuvered still farther over to the right

in its conflict with the cornered men, Foster was afraid that his

opportunity had passed. An idea came to him and he yelled directions.

One of the men suddenly dashed to the left, apparently in a last frantic

effort to escape the metal colossus. The machine flashed quickly over to

head the fugitive off. The maneuver brought it for the moment directly

under Foster's position.



Foster's muscles tensed swiftly, then flung his body headlong out into

space. His aim was perfect. The bulky roll of cloth in his outstretched

right hand struck the cable squarely with all the force of his hurtling

body behind it.



There was a searing flash of blue flame as the last thread of the cable

snapped, and a tearing flood of agony that blotted all consciousness

from Foster's brain as his falling body hurtled on toward the cavern

floor.



* * * * *



He struggled slowly back to consciousness to find Garrigan and another

of the men working over him. There was the stabbing pain of broken bones

in his left ankle. With the men helping him, he sat up and looked

around.



The scene was one of utter chaos and destruction. The falling cable had

obviously found its mark on Layroh's machine-body and in its last

furious convulsions the metal colossus had completely wrecked the great

glass case in the center of the cavern floor.



The machine itself was now nothing more than a tangled heap of twisted

metal. In its shattered crystal compartment was a torn blob of swiftly

blackening gelatin--all that remained of Layroh, the Shining One. Other

shredded figures of dead flesh marked where the ten half-awakened slugs

had died in the wreckage of the glass-walled case.



And in the many tiers of small cells along the cavern's back wall were

more figures of death. The severed cable had been the source of the

energy that had kept those dormant figures alive. When that energy

ceased death had come quickly. Those figures in the cells were no longer

Shining Ones. Their bodies were already swiftly darkening in decay.



Foster smiled grimly as he looked around the cavern. There were

scientific treasures here that would revolutionize a world. It was a

fitting retribution for the Shining Ones. When they had destroyed

Atlantis they had robbed Earth of countless centuries of scientific

knowledge and progress. Now, here in the cavern that had at last become

their tomb, they were leaving a legacy of science that would go far

toward repaying that ancient debt.