Before that clarification, hesitation fled. Straight at the center of that immense cyclotron, Cross aimed his battery of synchronized weapons. His thumb pressed down the-fire button. Above him, the half mile of spiral-shaped ship recoiled like an elephant struck an intolerable blow. It rocked madly, like a ship in stormy seas. And briefly, as it swung sickeningly, he saw blue sky through a gaping hole – and realized his victory.
He had cut that vast spiral from end to end. In every turn of it now was a hopelessly diffusing leak. No stream of atoms, however accelerated, could run that gauntlet un-mutilated. The power of the cyclotron was smashed. But all the implications of that ship remained. Frowning, Cross watched the ship poise for a moment, shakily. Slowly it began to recede, its antigravity plates apparently full on. Up, up it mounted, growing smaller as it withdrew into the distance.
At fifty miles it was still bigger than the battleships that were nosing down toward that green, almost unharmed valley. And now the implications were clearer, colder, deadlier. The nature of their attack showed that they must have spotted his activities in this valley months ago.
Clearly, they had waited until they could approach in one titanic, organized battle, with the purpose of forcing him out where they could follow him night and day by means of their instruments and so, by sheer weight of numbers and guns, destroy him and capture his equipment.
Dispassionately, Cross turned to Granny. "I'm going to leave you here. Follow my instructions to the letter. Five minutes from now, you will go up the way we came down, closing all the metal doors behind you. You will then forget all about this laboratory. It is going to be destroyed, so you might as well forget. If men question you, you will act senile, but at other times you will be normal. I'm leaving you to face that danger because I'm no longer sure, in spite of my precautions, that I can come out of this alive."
He felt a chill, impersonal interest in the knowledge that the day of action had arrived. The tendrilless slans might intend this attack on him to be but part of a vaster design that included their long-delayed assault on Earth. Whatever happened, his plans were as complete as he could make them; and though it was years too soon, he must now force the issue to the limit of his power. He was on the run, and there could be no turning back – for behind him was swift death!
Cross' ship nosed out of the little river and launched toward space on a long, slanting climb. It was important that he should not become invisible until the slans actually saw that he was out of the valley, before they had razed it in futile search. But first, there was one thing he must do.
His hand plunged home a switch. His narrowed gaze fastened on the rear visiplate, which showed the valley falling away below. At a score of points on that green floor (he counted them in lightning calculation) white flame blazed up in a strange, splotchy-looking fire. Down there, every weapon, every atomic machine, was turning on itself. Fire chambers were burning out, metal running molten in that devouring violence of energy.
The white glow was still there as he turned away a few seconds later, grimly content Now let them search through that ravaged, twisted metal. Let their scientists labor to bring to life a secret they craved so desperately, and to obtain which they had come out where human beings could see some of their powers. In every burned-out cache in that valley, they would find exactly nothing!
The destruction of all that was so precious to the attackers required a fraction of a minute but in that time he was seen. Four dead-black battleships turned toward him simultaneously – and then hovered uncertainly as he actuated the mechanism that made his vessel invisible.
Abruptly, their possession of atom-energy detectors was shown. The ships fell in behind him unerringly. Alarm bells showed others ahead, closing toward him. It was only the unmatchable atomic drivers that saved him from that vast fleet. There were so many vessels that he could not even begin to count them, and all that could come near turned their deadly projectors where their instruments pointed. They missed because during the very instant they spotted him, his machine flashed out of range of their most massive guns.
Completely invisible, traveling at many miles per second, his ship headed for Mars! He must have hurtled through mine fields, but that didn't matter now. The devouring disintegration rays that poured out from the walls of his great machine ate up mines-before they could explode, and simultaneously destroyed every light-wave that would have revealed his craft to alert eyes out there in the blaze of Sun.
There was only one difference. The mines were smashed before they reached his ship. Light, being in a wave state as it flashed up, could be destroyed only during that fraction of instant when it touched his ship and started to bounce. At the very moment of bouncing, its speed reduced, the corpuscles that basically composed it lengthened according to the laws of the Lorentz-FitzGerald contraction theory – at that instant of almost quiescence, the fury of the Sun's rays was blotted out by the disintegrators.
And, because light must touch the walls first, and so could be absorbed as readily as ever, his visiplates were unaffected. The full picture of everything came through even as he hurtled on, unseen, invisible. His ship seemed to stand still in the void, except that gradually Mars became larger. At a million miles, it was a great, glowing ball as big as the Moon seen from Earth; and it grew like an expanding balloon until its dark bulk filled half the sky, and lost its redness.
Continents took form, mountains, seas, incredible gorges, rock-strewn and barren stretches of flat land. Grimmer grew the picture, deadlier every forsaken aspect of that gnarled old planet. Mars, seen through an electric telescope at thirty thousand miles, was like a too-old human being, withered, bony, ugly, cold-looking, drooling with age, enormously repellent.
The dark area that was Mare Cimmerium showed as a fanged, terrible sea* [*The same legend that had portrayed man or slan as once having spaceships whispered the myth that huge ice or oxygen meteorites from Jupiter and Saturn – comprising thousands of cubic miles of frozen water and frozen air – had been guided toward all the potentially habitable planets, and exploded. This immense debris, falling onto the barren worlds of Mars, Venus, and some of the moons of Jupiter, created – it was said – oceans and vast atmospheres where none, or at least nothing worthwhile, had been before.] . Silent, almost tideless, the waters lay under the eternal blue-dark skies; but no ship could ever breast those placid waters. Endless miles of jagged rocks broke the surface. There were no patterns, no channels, simply the sea and the protruding rock. Finally, Cross saw the city, making a strange, shimmering picture under its vast roof of glass; then a second city, showed, and a third.
Far, far past Mars he plunged, his motors dead, not the tiniest amount of atomic energy diffusing from any part of his ship. That was caution, pure and simple. There could be no fear of detector instruments in these vast distances. At last, the gravitational field of the planet began to check his flight. Slowly, the long machine yielded to the inexorable pull and began to fall toward the night side of the globe. It was a slow task. Earth days fled into Earth weeks. But finally he turned on, not his atomic energy, but the antigravity plates which he had not used since he had installed his atomic drives.
For days and days then, while centrifugal action of the planet cushioned his swift fall, he sat without sleep, staring into the visiplates. Five times the ugly balls of dark metal that were mines flashed toward him. Each time he actuated for brief seconds his all-devouring wall disintegrators – and waited for the ships that might have spotted his momentary use of force. A dozen times, his alarm bells clanged, and lights flashed on his visiplates, but no ships came within range. Below him, the planet grew vast, and filled every horizon with its dark immensity. There were not many landmarks on this night portion aside from the cities. Here and there, however, splashes of light showed some kind of habitation and activity, and at last he found what he wanted. A mere dot of flame, like a candle fluttering in remote darkness.
It turned out to be a small mine, and the light came from th
e little house, where the four tendrilless slans who attended the mine's completely automatic machinery lived. It was almost dark before Cross returned to his ship, satisfied that this was what he wanted.
A mist of blackness lay like a black cloth over the planet the following night when, once again, Cross landed his ship in the ravine that led toward the mine head. Not a shadow stirred. Not a sound invaded the silence as he edged forward to the mouth of the mine. Gingerly, he took out one of the metal cases which protected his hypnotism crystals, inserted the atomically unstable, glasslike object into a crack of the rock entrance – jerked off the protective covering and raced off before his own body could affect the sluggish thing. In the black of the ravine, he waited.
In twenty minutes, a door of the cottage opened. The flood of light from within revealed the outlines of a tall young man. Then the door closed; a torch blazed in the hand of the shadowed figure, glared along the path he was following, and brought a flash of reflected flame from the hypnotism crystal. The man walked toward it curiously, and stooped to examine it. His thoughts ran along the surface of his casually protected mind.
"Funny! That crystal wasn't there this morning." He shrugged. "Some rock probably jarred loose, and the crystal was behind it."
He stared at it, abruptly startled by its fascination. Suspicion leaped into his alert mind. He pondered the thing with a cold, tense logic. And dived for the shelter of the cavern as Cross' paralyzing ray flicked at him from the ravine. He fell unconscious just inside the cave.
Cross rushed forward, and in a few minutes had the man far down the ravine, out of all possible earshot of the mine. But even during those first minutes, his mind was reaching through the other's shattered mind shield, searching. It was slow work, because moving around in an unconscious mind was like walking under water, there was so much resistance. But suddenly, he found what he was seeking, the corridor made by the man's sharp awareness of the pattern of the crystal.
Swiftly, Cross followed the mind path to its remote end in the complex root-sources of the brain. A thousand paths streamed loosely before him, scattering in every direction. Grimly, with careful yet desperate speed, he followed them, ignoring the obviously impossible ones. And then, once more, like a burglar who opens safes by listening for the faint click that reveals he has reached another stage in the solution of the combination, once more a key corridor stretched before him.
Eight key paths, fifteen minutes, and the combination was his, the brain was his. Under his ministrations the man, whose name was Miller, revived with a gasp. Instantly, he closed the shield tight over his mind.
Cross said, "Don't be so illogical. Lower your shield."
The shield went down; and in the darkness the surprised tendrilless slan stared at him, astonishment flaming through his mind.
"Hypnotized, by heaven!" he said wonderingly. "How the devil did you do it?"
"The method can be used only by true slans," Cross replied coolly, "so explanations would be useless."
"A true slan!" the other said slowly. "Then you're Cross!"
"I'm Cross."
"I suppose you know what you're doing," Miller went on, "but I don't see how you expect to gain anything by your control of me."
Abruptly, Miller's mind realized the strangeness, the eeriness of the conversation there in that dark ravine, under the black, mist-hidden sky. Only one of the two moons of Mars was visible, a blurred, white shape that gleamed remotely from the vast vault of heaven. He said quickly:
"How is it that I can talk to you, reason with you? I thought hypnotism was a mind-dulling thing."
"Hypnotism," Cross cut in without pausing in his swift exploration of the other's brain, "is a science that involves many factors. Full control permits the subject apparently complete freedom, except that his will is under absolute outside domination. But there is no time to waste." His voice grew sharper, and his brain withdrew from the other. "Tomorrow is your day off. You will go to the Bureau of Statistics and ascertain the name and present location of every man with my physical structure."
He stopped, because Miller was laughing softly. His mind and voice said, "Good heavens, man, I can tell you that right now. They were all spotted after your description came through several years ago. They're always under observation; they're all married men and – " His voice trailed off.
Sardonically, Cross said, "Go on!"
Miller went on, reluctantly. "There are twenty-seven men, all together, who resemble you in very great detail, a surprisingly high average." "Go on!"
"One of them," said Miller disconsolately, "is married to a woman whose head was badly injured in a spaceship accident last week. They're building up her brain and bone again, but – "
"But that will take a few weeks," Cross finished for him. "The man's name is Barton Corliss. He's located at the Cimmerium spaceship factory and, like yourself, goes into the city Cimmerium every fourth day."
"There ought to be an enforceable law," Miller said glumly, "against people who can read minds. Fortunately, the Porgrave receivers will spot you," he finished more cheerfully.
"Eh?" Cross spoke sharply. He had already noticed about mind reading in Millers mind, but it had not seemed applicable. And there had been other, more important things to follow up.
Coolly, Miller said, and his thoughts verified every word of it: "The Porgrave broadcaster broadcasts thoughts, and the Porgrave receiver receives them. In Cimmerium, there's one located every few feet; they're in all the buildings, houses, everywhere. They're our protection against snake spies. One indiscreet thought, and finish!"
Cross was silent. At last he said, "One more question, and I want your mind to give off a lot of thoughts on this. I want detail."
"Yes?"
"How imminent is the attack on Earth?"
"It has been decided," Miller replied precisely, "that in view of the failure to destroy you and obtain your secret, control of Earth has become essential, the purpose being to forestall any future danger from anybody. To this end vast reserves of spaceships are being turned out; the fleet is mobilizing at key points, but the date of attack, though probably decided on, has not yet been announced."
"What have they planned to do with human beings?"
"To hell with human beings!" Miller said coolly. "When our own existence is involved, we can't worry about them."
The darkness all around seemed deeper, the chill of the night beginning to penetrate even his heated clothes. Instant by instant, Cross' mind grew harder as he examined the implications of Miller's words. War! In a bleak voice, he said:
"Only with the help of the true slans can that attack be stopped. I must find them – somewhere – and I've exhausted most of the possibilities. I am now going to the most likely remaining place."
The morning dragged. The sun gleamed like a festering sore in the blue-black vastness of the sky. And the sharp, black shadows that it cast on the land grew narrow, and then began to lengthen again as Mars turned an unfriendly afternoon face to the insistent light.
From where Cross' ship crouched in the great chalk cliff, the horizon was a thing of blurred ridges against the shadowed sky. But even from his two-thousand-foot height, the nearness of the horizon was markedly noticeable. Twilight threatened, and then at last his patient vigil was rewarded. The small, red-striped, torpedo-shaped object drifted up from the horizon, fire pouring from its rear. The rays of the sinking sun glinted on its dull, metallic skin. It darted far to the left of where Cross waited in his machine that, like some beast of prey, lay entunneled in the swelling breast of the white cliff.
About three miles, Cross estimated carefully. The actual bulk of the intervening distance would make no difference to the motor that lay silent in the engine room in the back of the ship, ready to give forth its noiseless, stupendous power.
Three hundred miles, and that superb motor would vibrate on without strain, without missing a single beat – except that such titanic force could not be unleashed where its strength might to
uch ground, and tear a swath out of this already tortured land.
Three miles, four, five – he made swift adjustments. Then the force of the magnetors flashed across the miles and, simultaneously, the idea he had developed during his long trip from Earth took life from a special engine. Radio waves, so similar to the vibrations of energy he was using that only an extremely sensitive instrument could have detected the difference, sprayed forth from a robot motor that he had set up five hundred miles away. For those brief minutes, the whole planet sighed with energy waves. Out there somewhere tendrilless slans must already be plotting the center of that interfering wave. Meantime, his small use of power should go unnoticed. Swiftly, yet gently, the magnetors did their work. The faraway, still receding ship slowed as if it had run into resistance. It slowed – and then was drawn inexorably back toward the chalk cliff.
Effortlessly, using the radio waves as a screen for further use of power, Cross withdrew his own ship into the cliff's bulging belly, widening the natural tunnel with a spray of dissolving energy. Then, like a spider with a fly, he pulled the smaller machine into the lair after him.
In a moment a door opened, and a man appeared. He leaped lightly to the tunnel floor, and stood for a moment peering against the glare of the searchlight of the other ship. With easy confidence, he walked closer. His eyes caught the gleam of the crystal in the dank wall of the cave. He glanced at it casually, then the very abnormality of a thing that could distract his attention at such a moment penetrated to his consciousness. As he plucked it out of the wall, Cross' paralyzing ray sent him sprawling.
Instantly, Cross clicked off all power. A switch closed; and the distant robot atomic-wave broadcaster dissolved in the fire of its own energy.
As for the man, all Cross wanted from him this time was a full-length photograph, a record of his voice, and hypnotic control. It took only twenty minutes before Corliss was flying off again toward Cimmerium, inwardly raging against his enslavement, outwardly unable to do anything about it.
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