TABLE OF CONTENTS

CHAPTER 1

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AS THE POWERFUL CAR PLUNGED up the mountain road Jerry Morgan wondered what sort of reception awaited him at the end of this drive. Would the mysterious, eccentric man who was his uncle, and who lived in this mountain retreat which his nephew had never been permitted to visit, turn him away now?

It was not until he had reached the highest limit of timber growth that he came upon a log habitation built against the mountainside which rose steeply behind it, rugged and bare of vegetation. He stopped the car in front of the log porch, off the road enough to avoid blocking it. No one was around; no one appeared as he slammed the car door shut, climbed the steps and crossed the veranda. No one answered his knock; the door swung open at the impact and Jerry entered.

He found himself in a large living room, finished and furnished in pioneer style, the walls decorated with trophies. Despite the chill at this altitude, there was only cold, gray ashes mingled with bits of charcoal in the fireplace. Jerry had the feeling that the place had not been lived in for some time.

Exploration confirmed his initial impression. Shelves in the kitchen were empty save for a few dishes and utensils. There was no sign of food, and a thin film of dust had settled over everything, even the sink.

Puzzled, he returned to the living room and seated himself on a birch settee before the cold fireplace. Obviously, though this was the nominal residence of his uncle, Doctor Richard Morgan did not really live here. Where, then, did he live? As far as Jerry had been able to see in every direction there had been no sign of a building of any kind, save this one.

As he sat there, reflecting on these mysteries, he suddenly heard the door open, and turning, saw his uncle.

Like his nephew, Richard Morgan was tall and powerfully built. The remaining black among the silver hair and beard was as jet as Jerry’s, and though he did not look like a military man, his presence radiated authority. His forehead was high and bulged outward over shaggy eyebrows that met above his aquiline nose; and he wore a pointed, closely cropped vandyke.

“Glad to see you, Jerry,” boomed the doctor in his resonant bass voice. “I’ve been expecting you.”

Jerry Morgan stared in amazement as he took his uncle’s proffered hand. “Expecting me? Why, I told no one—intended to surprise you. It sounds almost like thought-transference.”

“Perhaps you are nearer the truth than you imagine,” replied the doctor, seating himself.

Jerry brushed this aside, mentally, as he groped for the proper words with which to frame his next speech. “I’m afraid you’re not going to like what I have to tell you, Uncle Richard,” he began. “The fact is, I’ve disgraced ...

“I, know all about it, Jerry,” said the doctor gently, and then proceeded to give a detailed account of the episode the young man had been about to tell. He ended with: “You knew the colonel would never believe a story about your being framed in a manner reminiscent of nineteenth century melodrama, so you had no choice but to resign. What you didn’t know was that it was not Lieutenant Tracy, your rival, who arranged the affair but Elaine herself.”

“Impossible, uncle ...

“Think, Jerry. Had you told anyone—anyone but Elaine—that you were not going directly back to your quarters as usual, but were stopping at the drugstore in town first? Someone had to know you would be in town at a certain time that night in order for the plan to succeed. It couldn’t have worked in any other place, although it could have happened at a later time. And Lieutenant Tracy was in the field that night, and could not have been privy to it. In fact, he knew nothing of it at all.”

“Then I misjudged them both—Tracy and Elaine.”

“Not too badly in Tracy’s case, I should say. He just wouldn’t have done it that way though. He couldn’t have been as sure of the colonel’s reaction as the colonel’s daughter was, you see. Well, don’t fret about them my lad. They’re two of a kind and they richly deserve each other ... And now will you believe me if I tell you I know everything you’ve done since? Good.” He stood up. “You have guessed that I don’t live here—that this place is only a dummy habitation to keep the folk who live hereabout from prying into my affairs. Follow me.”

He led the way through the kitchen, and thence down a stairway into the garage. At the back was a tier of shelving. The doctor reached behind a shelf and pulled. Instantly, the whole tier swung back from the wall, revealing a dark passageway, hewn from the rock, leading into the mountainside.

“Enter,” said the doctor.

At the end of the tunnel they came to a sliding door, which the doctor pushed back. Behind it was an automatic elevator. They entered; Morgan touched a button and they rose noiselessly. At the end of the ascent, they stepped out into a large, airy hallway, into which filtered sunlight streamed through irregularly shaped skylights of frosted glass.

“Seen from the outside, those skylights simulate the drifts and ridges of snow which surround us,” said Morgan. “We are now at the peak of the mountain, and this building is so constructed that, viewed from near or far, it appears to be a part of it.”

“Amazing!” exclaimed Jerry. “I pictured you in a little cabin, perhaps with a small laboratory.”

“I have other surprises for you,” said the doctor. “In the meantime, Boyd will show you to your room. He has already installed your luggage and drawn your bath. I’m sure you will want to freshen up’ after your journey. See you at breakfast.”

“Before I tell you of my life’s work,” said Morgan, as they attacked the viands before them, “let’s talk about you. I know precisely how you feel. You have lost your career and the woman you wanted, and you have come to me for the rest of your patrimony, with which you expect to embark on a certain desperate adventure. The odds are a thousand to one against your coming out alive, but this means little to you the way you feel now.”

He proceeded to relate full details of Jerry Morgan’s plans.

“You seem to read my innermost thoughts, uncle, as if they were a printed page spread before you. I can’t imagine how you know all this, but you are right.”

Morgan sighed. “If you are determined to go on with this, I’ll do all in my power to help you. Yet it is my hope that I may be able to offer you a new interest in life—new adventures that will serve a most excellent purpose, and beside which the one you have planned will pale to insignificance.

“You have said, half in jest, that I appear to read your mind. I do; I have always read your mind, since the death of, your parents put you under my guardianship—which took place after I had perfected my experiments with telepathy. Telepathy, one of the most remarkable powers of the objective mind, is not affected by time or distance. It acts instantly, once contact has been established.

“I started out trying to build a device which would pick up and amplify thought waves. This led to contact with a man on Mars who was experimenting in transmitting thought-waves—but not the Mars of today,” he added, seeing the expression on Jerry’s face. “Lal Vak, the Martian, spoke and still speaks to me from the Mars some millions of years ago, when a human civilization did exist there. We found that personalities could be exchanged between certain Martians and Earthmen who were nearly doubles physically, and whose brain- patterns were similar. Since that time, we established contact with a Venusian, Vorn Vangal who is contemporary with Lal Vak. I am presently in contact with both of these men who, to our niche in space-time have been dead for millions of years. I was able to send two Earthmen to Mars and two to Venus, through personality exchange. The two men on Venus are still alive, and in communication with me. Of the two I sent to Mars, only one remains; the other, who was a criminal, was slain by his fellow-Earthman. This leaves me with only one representative on Mars.”

Had it not been for the demonstration he had already received in relation to Morgan’s intimate knowledge of his own affairs, Jerry Morgan would have been far from credulous. Under the shock of what he had learned, it seemed somehow believable. “It sounds interesting,” he said, trying not to be carried away. “How about sending my personality to Mars.”

“Lal Vak, Vorn Vangal and I have worked out improvements,” Morgan said. “I am now prepared to send you on a journey through time and space in the flesh.”

“Then you must have some sort of space-time vehicle.”

“Follow me, and I will show you,” replied the doctor, rising.


CHAPTER 2

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IN THE CENTER OF THE high, dome-roofed shed stood a huge globe, more than fifty feet in diameter. It was covered with thick asbestos, held in place by a meshwork of steel cables. A circular metal plate, studded with bolts, and apparently the lid of a doorway or manhole, was on the side facing them.

“I am indebted to the people of Olba, a nation on Venus, for the mechanism which makes this space-time vehicle possible,” said the doctor. “I do not pretend to understand it myself, and can only tell you that it has made several trips successfully—though without any human cargo. The power which propels it either comes from or is tapped by the human brain, and what you may have heard of as telekinesis is as good an explanation as any. I already have contact with the mechanism. Now watch the metal plate and see what happens.”

Jerry watched, then uttered an exclamation as it began to turn swiftly, projecting farther and farther from the surface of the sphere with each turn. It was threaded, and when it unscrewed itself for a distance of about five feet, it suddenly fell forward with a loud click, and hung suspended by a heavy metal hinge, revealing a dark hole in the sphere. Then a ladder of flexible steel cable uncoiled itself from the dark depths, and dropped to the ground.

Jerry sprang up the ladder and crawled into the hole. After following a narrow passageway for about twenty feet he came to a small circular room about ten feet in diameter. The walls, floor, and ceiling of the room were thickly padded and suffused with soft light. He turned as a shadow blocked the ‘light from the tube.

“How do you like it?” asked Morgan.

“Fine,” replied Jerry. “Why not let me start now?”

“I had that thought in mind when I brought you here. However, landing on Mars will have difficulties because of the rarer atmosphere—not as rare as the Mars of today, but noticeably more so than what you’re accustomed to. Because of this, and the lesser gravity, your heart and lungs will have to make readjustments, and it will take time to become acclimated. Go slowly, when you leave the sphere.”

“How long will it take to get there?”

“I cannot calculate precisely, but it will not take long.”

“And do you know on what part of the planet I will alight?”

Morgan nodded. “While you were crossing the United States by train, Lal Vak was traveling from his home in the city of Dukor, to Raliad, largest city of Mars. He is now housed in the imperial palace of Raliad, and is in contact with me. So the globe, directed by our minds, will travel straight to the palace. When you arrive, he will be there to greet you, and to teach you the language of Mars. After that, you will have to shift for yourself.”

“Fair enough. But what do you want me to do on Mars? I gather that I can be of help to science, or something of the sort.”

“If you succeed in living on Mars, you will be the first Earthman to do so in the flesh. After that, my thought-recorder will be in contact with you, day and night, making a record of what you see and do. Alighting in Raliad, greatest city of Mars, you will communicate much valuable knowledge regarding this mighty city. From the moment you land, you will be an explorer, automatically relating your adventures to us here.”

The doctor raised the lid of a case which Jerry had previously noticed, fastened against the wall. It contained a repeating rifle, a Colt forty-five in a shoulder holster, a hunting knife, a camp axe, a canteen, and a number of boxes of ammunition and provisions.

“For emergency,” said the doctor, “just in case you should happen not to alight at the imperial palace in Raliad.” He closed the lid and secured it. “Now let me strap you to the center of the floor, and you will be ready to start.”

A few minutes later, warm farewells had been made, the doctor departed, and the outer door screwed into place.

The globe lurched unsteadily for a moment, then Jerry found himself forced suddenly against the floor as it shot swiftly upward. Gradually the intense pressure against his body grew less and was followed by a feeling of lightness. This feeling lasted for only a few moments; then he felt himself growing heavier, but the sensation was most peculiar. For instead of pressing against the floor, his body was now pulling away from it—tugging against the straps as if in an effort to rise toward the ceiling.

The strange pressure of the straps gradually lessened. Then he felt a slight jolt, and the floor began wobbling unsteadily beneath him. Evidently the globe had landed—but on what?

Hastily unfastening his straps, he got to his feet, but the effort shot him up against the ceiling of the cubicle. When he stood on the swaying floor again he saw that the door was unscrewing itself. A moment later it dropped down from the opening, and bright daylight came in through the hole.

His first look outside convinced him that he had really landed on Mars. The sun, though it appeared much smaller than when viewed from Earth, blazed brightly with a peculiar, blue-white light. It hung just above a horizon of weird and grotesque plant growths. Looking downward, Jerry saw that the globe had alighted on the shallow, sandy margin of a small lagoon, and its rocking was occasioned by the wash of waves driven by a stiff breeze.

His heart pounded wildly as he gazed about him at this strange landscape, and a giddiness assailed him. Believing this to be due to the lessened gravity of the planet on which the globe now rested, he waited for his circulatory system to adjust itself. Slowly, cautiously, he inhaled the air. It was cool and sweet, but somehow it did not satisfy him. He filled his lungs to capacity, again and again, but his heart resumed its wild pounding; there was a feeling of pressure in his eardrums. A gray haze obscured his vision, he fought against it, but to no avail.

He fell back, gasping for breath, then all went black.


CHAPTER 3

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Jerry’s senses returned slowly.

His lungs ached from their unwonted exertions, his throat was dry and parched, and his heart was drumming in his ears.

Slowly, cautiously, he sat up. His fingernails, he saw, were still quite blue, evidence that he had escaped suffocation by a very narrow margin. The sun had risen at least twenty degrees, proving that he had been unconscious for more than an hour.

For some time he sat there, inhaling the cool, sweet air; then he got up cautiously, and went back into the cubicle. Here he opened the case which contained his weapons, equipment, ammunition and provisions. He loaded the rifle and pistol, and filled his pockets with ammunition for both weapons. The balance of the ammunition and provisions he placed in a heavy canvas bag provided for the purpose, and fitted with straps so it could be slung over his back.

After strapping the pistol, camp axe, knife and canteen in place, he slung the pack over his back, took up the rifle, and creeping through the narrow passageway, turned and descended the ladder. The shallow water at its foot only came to his ankles, and he splashed up onto the sandy beach.

As he stood there, scanning the strange trees and shrubbery before him, he heard a sharp click. The ladder had been withdrawn into the globe, and the door was screwing itself into place. A moment more and it was tight; then the globe rose, water dripping from beneath it. It soon became a tiny speck which rapidly faded from view.

Resolutely he turned away, and climbing the sloping beach, strode in among the strange, treelike growths which fringed the shore. Now Jerry felt an exhilarating sense of lightness and freedom of movement. The weight of his supplies, equipment and weapons was but trifling; and it seemed as if the metal parts of his rifle were made of aluminum rather than steel.

As he passed through the first fringe of trees, Jerry found that he had stepped into a cultivated garden, laid out with paths of resilient, reddish- brown material as springy as rubber, which wound among beds of bright, weird blooms of grotesque forms and patterns, clumps of shrubbery, and shady groves of trees.

After walking for a distance of about a mile he reached the edge of the garden, bounded by a wall about fifty feet in height, which stretched in a gradual curve to the right and left, as far as he could see. It was constructed from immense blocks of translucent, amber-colored material, fitted together so cleverly that the seams were all but invisible. At regular intervals, curving stairways led up to the top of the wall, and he made his way to the nearest one.

A short climb brought him to the top of the wall, which was more than a hundred feet thick. He walked across it and peered over the edge, then drew back dizzily. He was looking down on the busy streets of an immense city, so far below him that the scurrying people and speeding vehicles looked like tiny insects. The wall on which he stood edged the roof of what was the largest building in sight, and the roof itself was covered by the garden through which he had just come. As far as he could see, there were other buildings formed from translucent blocks of various colors, taller by far than the mightiest skyscrapers on Earth, and all topped by roof-gardens.

From his point of vantage, Jerry now surveyed the garden through which he had just passed. He saw many scattered individuals at work, caring for the plants and harvesting the fruits—muscular, nut-brown men who were naked save for turban-like head-pieces, leather breech-clouts, and high boots with the tops rolled down below the knees.

Except for their strange apparel and the fact that their chests were, on an average, larger than those of Earthmen, they did not show any marked difference from terrestrial peoples. He descended to the garden once more and walked in the direction where he had last seen the nearest worker.

He had not gone far when he found himself face-to-face with a girl. She was slight, slender and white-skinned, with large brown eyes, raven-black hair, and an ethereal beauty of face and form. A fillet of woven gold links set with polished bits of lapis lazuli bound her glossy hair. A band of the same materials supported her small breast shields of beaten gold. And from a belt of gold links powdered with amethysts, depended a tight cincture of shimmering peacock blue fabric with a texture like that of satin.

Though Jerry was merely startled at this sudden meeting, he saw by the look in her eyes that the girl was frightened. She half-turned as if about to flee but evidently reconsidered, and once more faced him resolutely.

Resolving to try to calm her fears, he said, “Good morning.”

Then he smiled, and started what was meant to be a step in her direction. But the result, instead of a mere forward step, was something in the nature of a leap which landed him not two feet in front of her.

The effect of this performance on the girl was instantaneous. Before he had recovered his equilibrium, she screamed and shrank back.

Scarcely had he regained his balance, when Jerry’s attention was attracted by a new sound—a terrific roar which came from a huge beast that was bounding toward them along the path. With a yawning, tooth-filled mouth as large as that of an alligator, a furry black body fully as big as that of a lion, short legs, and a hairless, leathery tail, paddle-shaped and edged with sharp spines, the oncoming monster certainly looked formidable.

Jerry thought and acted swiftly. His first duty was to get the girl out of the path of the charging monster.

Gripping his rifle in his left hand, he bent and encircled her slender waist with his right arm. Then he leaped to one side, just in time to avoid those gaping jaws. But the spring he male carried him clear over the hedge, and into a carefully-tended bed of tiny flowering plants.

For the first time since he had landed on Mars, he realized the tremendous advantage of his Earth-trained muscles. The short-legged beast, unable to leap over the hedge, was crashing through it. So he turned, and still carrying the girl beneath his arm, bounded away with tremendous leaps.

The slender form of the girl was feather-light, and impeded him scarcely at all. On Earth she would have weighed about ninety pounds; on Mars she weighed about thirty-four.

Glancing back over his shoulder, he saw that although he had a good start on the beast, it was following him with a speed that was amazing in a creature with such short legs. Soon the stairway loomed before him, and he bounded up it, five steps at a time. As soon as he reached the top of the wall he put the girl down and turned to face their pursuer, which had meantime reached the steps.

Snapping his gun to his shoulder, he took careful aim between the blazing green eyes, and fired. Without a sound or a quiver, the beast sank down on the steps.

At the sound of the shot the girl had sprung erect. For a moment she peered down at the fallen beast. Then, her eyes flashing like those of an enraged tigress, she turned on Jerry with a volley of words that were unmistakably scornful and scathing.

Suddenly her hand flashed to her belt and came up with a jewel-hilted dagger. Jerry noticed that the blade was straight and double-edged, with tiny, razor-sharp teeth. For a moment he did not realize what she intended doing; but when she raised her weapon on aloft and lunged straight for his breast, he caught her wrist just in time.

As he stood there holding her wrist to keep her from reaching him with that murderous blade, he became aware that men were coming through the garden, converging on them from all directions and scrambling up the stairways. These brown-skinned men, whom he had previously seen working as gardeners, were all armed with saw-edged, straight-bladed swords and daggers, and heavy maces with disk-shaped heads.

There was no chance to escape, so he stood his ground, still clutching the struggling girl’s slim wrist with one hand, and leaning on his rifle with the other.

Suddenly the girl wrenched her wrist from his grasp, and sprang nimbly away from him. And in a moment he was surrounded by a circle of menacing, saw- edged sword blades.


CHAPTER 4

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AS HE STOOD THERE, RINGED by hostile swordsmen, Jerry thought rapidly. Obviously, the brown men understood that his rifle was a dangerous weapon, for they were approaching him cautiously. Accordingly, he bent and laid it at his feet. Then he unstrapped his other weapons piled them on top of it, and raised his hands above his head in token of surrender.

Instantly two men leaped in and took possession of the weapons. A third cast a loop of tough, flexible leather around his wrists and drew it taut.

The girl spoke to one of the men, evidently an officer, who saluted her by holding both hands before his eyes, and issued a sharp command to the others. Then she turned and descended the steps to where the dead beast lay. As his captors dragged him after her, Jerry was surprised to see her stoop and throw her arms around the great shaggy neck. When she arose, tears were trickling down her cheeks.

She led the way through the garden. Behind her, walking at a respectful distance, was the officer; following him was the man who held the thong which bound Jerry’s arms. On each side of the Earthman strode a brown warrior, sword in hand, and behind him walked two more, bearing his arms and equipment. The others dispersed.

They followed a path of the resilient brown paving material which presently led to the mouth of a tunnel which yawned from one side of a tree- covered mound. At either side of the tunnel mouth stood a white-skinned guard, who in addition to sword, dagger and mace, was armed with a sheaf of wicked- looking multi-barbed javelins.

At sight of the girl, these guards saluted respectfully. Then one hurried into the tunnel and emerged a moment later, followed by a vehicle which made Jerry gasp in astonishment. It moved smoothly and silently on six pairs of jointed metal legs shod with balls of resilient reddish-brown material like that used in paving. In lieu of seats, it supported twelve saddles, set three in a row. And in the foremost row, at the extreme right, sat the driver, who manipulated the multiped conveyance by means of two vertical levers, on either side of his saddle.

The girl climbed into a saddle beside the driver, and Jerry was placed in the central saddle of the next row, a guard on each side of him. The man who held the thong that bound his wrists, and the two who bore his equipment, seated themselves in the next row. The vehicle started as the driver pushed the two levers forward.

The tunnel which they entered led downward in a steep spiral. It was lighted by small globes filled with a thick, luminous liquid which he later learned was derived from a radioactive substance called baridium. They were suspended on short chains from the ceiling, and shed a mellow, amber light. Swiftly they sped down that spiral ramp, and Jerry caught flashes of small level platforms at regular intervals, leading to arched doorways. Presently, the vehicle slowed down and came to a sliding stop before one of them.

The girl sprang out onto the platform, and Jerry was dragged after her by his captors. She led the way to a tremendous arched door before which stood a score of armed and uniformed guards. These guards were white. They saluted respectfully, and parted their ranks to let the party pass.

The splendor of the room they now entered left Jerry spellbound with awe. It was a tremendous circular audience chamber, at least a thousand feet in diameter, and as high as it was wide. Its ceiling of burnished gold was supported by huge pillars, fifty feet in diameter, each seemingly cut from a single piece of pale blue crystal.

The floor was of hexagonal, orange colored crystal blocks, between the interstices of which molten silver had been poured, and the whole polished to a mirror-like luster. Suspended from the ceiling on thick golden chains, and hanging about two hundred feet above the floor, were huge light globes, twenty feet in diameter, filled with the luminous liquid he had previously observed.

At spaced intervals around the circular wall, uniformed guards stood, leaning on their tall spears.

In the center of the room, toward which they were walking, stood a circular dais, consisting of three disks placed concentrically one above the other. The top disk was of blue crystal, the middle one of orange crystal, and the bottom one of black.