Astounding Stories, July, 1931 Part 3

"The Master Intelligence of Mars plans to add the Earth to his domain.

Unless we can do something to stop it, in a few years the world will be overrun with gigantic robot-machines, controlled by force from across the gulf of s.p.a.ce. Humanity cannot resist them. Imagine a battles.h.i.+p pitted against that green annihilating ray, and all the other science of an elder planet!

"Life is to be blotted out! The Master Intelligence of Mars will rule two worlds of mechanical monsters!"

Dan sat in a dazed vision of horror to come, until Helen straightened up as if shaking off a mantle of fear, and smiled heroically, if a bit wanly.

"Now you must eat your bread and sardines, to give you strength to fight for humanity!" she cried, with a laugh that she strived, not too successfully, to make cheerful and gay.

Obediently, he began to eat, finding an excellent appet.i.te....

It was several minutes later that he fancied he heard a whirring and crackling in the brush behind them. He sprang to his feet in alarm.

"It can't be far back to where I left the machine," he cried. "Do you suppose there's danger that--"

The mechanical ears of the metal things may have picked up the sound of his voice: but in any event, green flame flashed about them on the instant. Feeling a sudden protective impulse, Dan started toward Helen. That was his last recollection, before what seemed a terrific concussion swept him into the abyss of unconsciousness....

His first thought, when he awakened, was of the girl. But he was alone in the silence of the canyon. He sat up, realizing that many hours had pa.s.sed, for the air was growing cool again, and the sun was low behind the peak at the head of the ravine. The huge, mysterious machine of the purple ring and the vibrating white needle were blazing splendidly.

He took more detailed stock of his immediate surroundings. The tangle of brush that had sheltered them had been cut away by the green annihilating ray. Charred stumps remained to show where it had fired bushes beyond the trail. His own shoulder was blistered, a hole was burned in the sheet wound about him, and the hair was singed from the back of his head.

Suddenly trembling with horror, he looked about for anything to show that Helen had perished by the ray. Discovering nothing, he breathed a sigh of relief.

"She must be still alive, anyhow," he muttered. "And I've had another lucky break! The ray was too high to get me. They must have left me for dead."

Presently he became conscious of torturing thirst. He retired through the brush, along the rocky wall of the canyon. By sunset he came upon a little natural basin in a rock, half full of rain water. It was none too clean, but he drank his fill of it, and felt relief.

Looking up the canyon, he could see the great mechanism on the peak, gleaming in the dusk. Intensely-glowing purple mist clung about the great metal ring, and the slender, delicate needle swung below it, still vibrating, still throbbing with brilliant, white radiance. It pointed at the red eye of Mars, which had just winked into view.

Dan stared at it a long time.

"It all sounds crazy," he muttered, "but it isn't! The Master Intelligence of Mars, she said, is controlling the mechanical things through that! The doom of the Earth is coming through that white needle! If only I could smash it, somehow!"

He looked down at the white folds of the sheet that draped him, and clenched his hands impotently. "No gun! Not even a pocket-knife.

Nothing but my bare hands!" He bit his lip.

Still he stared challengingly at the gleaming mechanism on the peak.

An idea slowly took form in his mind; an exclamation abruptly escaped him. Narrowly he eyed the trussed girders of the silver towers which supported the great ring, muttering to himself.

"Yes, I can do it! If I don't get caught! I can climb it, well enough.

The needle looks a bit frail. I should be able to smash it! I'd like to see Helen again, though."

He gathered the sheet around him, and began picking a cautious way up the canyon, staying always in the cover of boulders or brush. A few times he disturbed a rock, or snapped a twig beneath his foot. Then he waited out of sight for long minutes, though he had no reason to believe that the metal monsters were on the alert for him.

"I've got to do it! The world depends on it!" he kept saying again and again in his mind.

The quick darkness of the tropics had fallen almost before he started.

But he welcomed the night, for, if it made his own silent progress more difficult, it reduced the hazard that he would be discovered.

Gauging the time by the slow wheeling of the diamond-like stars across the velvet sky, he thought that two hours had pa.s.sed when he reached the head of the canyon. He stood up cautiously to survey the little plateau at the summit of the hill.

It was several acres in extent, quite level, and almost clear of vegetation. At the farther side was a pile of wreckage, which, he supposed, had been the quarters of Dr. Hunter's party, before they had been destroyed.

Many huge machines stood about the plateau, vast, dark ma.s.ses looming in the starlight. Mostly they were either not running or very silent in operation; but a very deep, vibrant humming sound came from one near him. Smaller shapes were moving about them, with long easy leaps.

These, he knew, were the mechanical monsters, though it was too dark to distinguish them.

But by far the most prominent object upon the plateau was the enormous gleaming thing that Helen had said was the station over which came the signals from the Master Intelligence on Mars. One of its three towers sprang up not far from where he stood. The huge, refulgent ring, swathed in its mist of purple fire, was a full hundred feet above him; and the slender needle, pulsing with white flame, swinging within and below the colossal ring, was itself a hundred feet in length.

The white needle, for all its length, seemed hardly thicker than a man's finger. It was mounted at the top of a curiously complex and delicate-looking device that spread broadly out between the three towers, below the center of the huge purple ring.

Dan looked at it and decided that his plan had at least a chance of success--though he had no hope that it would not be fatal to him.

Quickly and silently he ran to the base of the mighty silver towers nearest him and began to climb the side toward the ravine, where the maze of girders would hide him, at least partially, from any watchers back on the plateau. The starlight and the faint weird radiance of the purple ring above sufficed to guide him.

The cross-braces on the girder he had chosen were s.p.a.ced closely enough to serve as the rungs of a ladder. Dan climbed easily, pausing twice for breath, and to look down at the dark plateau. The vast, humming machines loomed up strangely in the pale purple light that fell from the gleaming ring.

Once he looked across toward the other side of the island. The surface there was more level. He glimpsed tiny moving lights, and huge stationary ma.s.ses, apparently as large as ocean liners. He had an impression of a vast amount of mechanical activity, proceeding in the darkness very rapidly, and in a silent and orderly fas.h.i.+on.

"The expeditionary force of the Master Intelligence of Mars," he thought, "preparing to set out against humanity! And what I can do is the only chance to stop it!"

He climbed again with renewed energy. A few yards more brought him to the colossal metal ring. Resting upon the three towers, it was a circular band of s.h.i.+ning metal a foot thick and as wide as a road. The intense purple glow extended several feet from its surface.

Dan touched it tentatively. He felt a tingling electric shock. And he thought he could feel a radiation coming from it, giving him a curious sensation of cold. As he reached his hands up and grasped the upper edge of the great ring, he felt what seemed a physical current of cold.

Controlling his tendency to s.h.i.+ver, he climbed upon the last brace, and, lifting his weight with his hands, threw himself face down upon the flat upper surface of the vast ring. He lay bathed in cold purple fire. He tingled with the chill of it. A frozen current seemed to penetrate his body. Involuntarily he trembled, lost his grip and dangled precariously from the rim.

Only a frantic scrambling restored his hold. Then, fighting the sensation of freezing cold that came from the mist of purple flame, he drew himself forward and got to his feet upon the broad surface of the metal ring. On both sides it curved away like a circular track.

Red-violet fire s.h.i.+mmered about it, bathing him to the waist in a chilling torrent.

Through coruscating frozen flame he waded to the inner rim of the colossal ring. Below him hung the needle, a mere straight line of white fire, a hundred feet in length. Eye-dazzling radiance scintillated along it, waxing and waning with a curious throbbing rhythm. The needle vibrated a little, but it pointed directly at the red point of Mars, now almost directly overhead.

Repressing a shudder, Dan looked down at the complex and delicate apparatus upon which the slender needle was mounted. It was a light frame of white metal bars, with spidery coils and huge glowing tubes and flimsy spinning disks mounted in it. The gleaming needle was mounted much like a telescope at the top of the device, fully fifty feet below him.

"Looks flimsy enough," Dan muttered. "I'll go through it like a sixteen-inch sh.e.l.l! Who would have thought I'd end this way!"

He stepped back for a moment, and stood on the polished metal, hidden to the waist in cold purple flame. Lest it impede his movements, he tore the sheet from him and threw it aside. He let his eyes sweep for a last time over the familiar constellations blazing so splendidly in the black sky above. He had a pang of heartache, as if the stars were old friends. His glance roved fondly over the dark, indistinct ma.s.ses of the island, and across the black plain of the sea.

"Well, no good in waiting," he muttered again. "Sorry I can't see Helen. Hope she gets off all right."

He backed to the outer rim and drew a deep breath, like one about to dive. Then, with set face, he sprinted forward. As he did so a blinding flash of green light flickered up before him. He ducked his head and leapt from the inner edge of the vast glowing ring.