"Well," she put in, "I can still cover up my yawns with my hand if I find this pastime too much of a bore." They both chuckled at this little joke.
Janice took the last missile from the case she had been emptying and rammed it home. She jerked the lanyard, and with a thudding jolt the torpedo was on its way. Then she paused to scan the horde of Alkebar through an observation port. "Hurrah," she cried, "we're scoring!"
Without discontinuing his hurried feeding of his smoldering piece, Shelby looked up. The cloud had grown considerably in the few moments of action. It had cleared the asteroid now, and the other nebulous spot that marked the position of the Black Emperor's second army, was coming up to merge with it. In the midst of the first cloud, hundreds of minute specks of light were flashing--the atomic torpedoes were exploding. The sight reminded Shelby of what he had so often seen through the lens of a spintharoscope.
Alkebar's army continued to increase rapidly in apparent size. It looked like a monster amoeba. But now the amoeba was beginning to writhe, to swell up and grow dimmer. It shot out long sinuous pseudopods that seemed to grope angrily. Both Earthians sensed that the fight was about to begin in earnest.
With renewed vigor they fell to the task of loading and discharging the catapults; and close beside them the two Space Men who acted as gunners, labored coolly and methodically over their weapons, but with even greater efficiency, for their training had been long and thorough.
Telaba worked the levers of the signaling mechanism, and a brilliant purple star visible to all his henchmen shot up over the back of his beast. They saw it and read its meaning. Spread out to avoid enemy fire!
As one man they obeyed, but they were none too soon. With abrupt suddenness the maelstrom of silent flashing death was upon them.
It was a pretty sight to the Earthians--those soundless globes of green flame that glowed dazzling for an infinitesimal instant, on the rich jewels and polished rifle barrels of the hordesmen coursing close by.
But they were not deceived.
A Space Man vanished, torn to tiny fragments that mixed with the cosmic dust of the void. A huge disc, bearing a cylindrical battle car, was hit, and a jagged hole torn in its side. It twisted crazily, turning over and over. Austin and Jan felt the vibration of shell fragments banging violently against their own vehicle.
The nearer nebulous cloud had ceased to be a cloud now. It had resolved itself into a myriad swarm of dim specks which the Earthians knew were Space Men. Plainly Alkebar's minions were charging rapidly, bent on wiping Telaba's smaller force out of existence at one blow.
The bombardment doubled, tripled, quadrupled in intensity until it seemed that all space had turned to fire. Before the withering blast the army of the rebel chief was speedily being dissolved into drifting wreckage.
An exploding torpedo ripped several yards of armor from one side of Telaba's vehicle and reduced one of his black gunners to a mangled pulp from which the purple fluid spurted.
The force of the concussion turned the great disc completely over.
Battered and blinded by the green glare, which exceeded even the sun of the void in intensity the Earthians tumbled against their weapons.
Janice Darell started to scream but managed to check it--biting her lips savagely.
An explosive rifle bullet struck the huge vehicle, and it wavered.
Shelby spoke to Telaba who was clinging firmly to a stanchion with one hand and operating his signaling machine with the other. "Turn back, chief," the Earthman advised. "Our only motive is to annoy them and delay them. To continue this charge can mean nothing but destruction for our entire force."
Telaba sensed the mental vibrations that went with Shelby's words. "To turn back cannot do, Earthman," he said. And it seemed to the young engineer that there was a vibrant note of sadness in his telepathic voice. "Look! You see all guns and catapults point forward only. Not swing to rear--same on all gun cars. If run, not possible to shoot at chasing enemy. Then they get us. That Alkebar's idea so his men must take offensive or die. He think that make them strong."
"But the riflemen are not so handicapped," Shelby persisted. "We can die here if necessary, but someone must live to carry on. Order them back!"
The chieftain shook his bulbous head. "To try what you say--useless.
They not desert comrades or king. If I command, they disobey." There was a finality in his words which neither of the Earthians tried to dispute.
So that was it! Well, there was no sense wasting time talking. Shelby gripped a machine gun and sent a spray of explosive bullets ripping out into the ether. Janice did likewise.
As they worked their weapons they spoke rapidly to each other. "You understood what Telaba said? You know what that means?" Shelby asked.
"Yes. It's about the end of our tape, but that's nothing. We've been fairly lucky. All we can do now is hope that Ankova wins through to Mars in time, and fight like--like--"
"Hell!" Shelby's words slipped between clenched teeth, and Jan flashed him a quick smile even as their tracer streams crossed in the midst of a group of hurtling Alkebarians who had pressed too close together.
"Anyway, good luck!"
"And the very best of luck to you!"
The opposing forces were very close together now. The first of the Alkebarians were plainly visible--their long guns flashing--their ebony arms waving signals which probably passed for shouts of triumph among their ranks.
CHAPTER X
The Coming of the Atomic Ray
Both armies had cut down their velocity enormously, but still they tore along at breakneck speed. And they moved like true Cossacks of the void, directing their machines by deft motions on the mysterious levers. Now diving, now climbing, now swinging this way and that to avoid the missiles of their opponents, they tore on. And death was everywhere.
No torpedoes were flying now, but machine guns and rifles were working terrible havoc. And so the horde of Alkebar closed with the forces of the rebel chieftain.
The machine which bore Telaba, directed by its skillful driver, dived and swung and zigzagged like a mad thing; but still the bullets rattled against the metal armor of the car. Its sides had been repeatedly struck, yet owing to its tough shell, had not yet been disabled.
Everywhere about it, mounted horrors whirled in an inextricable tangle, shooting and loading, and dying by the green flashes, their vitals strewing the ether.
Telaba had deserted his post at the signaling machine, for further orders were useless. For his rebels at least, it was every man for himself. He too was operating a machine gun.
The stars spun dizzily about the Earthians, as the machine beneath them careened in its insane fight. Every time a Space Man wearing a red circle on his breast crossed their sights, a burst spat from their hot weapons, frequently with good results.
A group of at least twenty Alkebarians sought to attack from the blind spot at the rear. But the driver twisted levers with a quick jerk, and the luckless riflemen found themselves facing four streams of steel.
Those that could, darted out of range and renewed the attack from a different angle.
Frequently, throughout the battle, Shelby had wondered what had happened to Hekalu Selba and the Atomic Ray. Why wasn't he on hand to assist his ally, the Black Emperor? Oh, well, regardless of whether the Martian was there or not the outcome would evidently be the same--only now it would be more dragged out.
The Earthian was surprised therefore, when suddenly the efforts of the enemy to exterminate them, which had been so intense in the brief moments since they had closed, suddenly lessened. Alkebarians were darting hastily toward the rear. Their actions did not suggest flight; it seemed that they were going to meet a new and more terrible enemy.
The rebels could wait.
And the people of the rebel chief for the moment did not pursue--did not even fire. For they too saw! To the rear, in the center of Alkebar's horde, came the dazzling flares of explosions. So many and so close together were they, that they looked like a titanic conflagration of green flame. Against the light, the silhouettes of confused and bewildered space riders careened, like frightened pollywogs. The holocaust moved--swung. It was like a tapered column of fire veiled by a faint bluish haze.
The Earthians, Telaba, and the two remaining Space Men, forgetful of everything else, were staring in awed wonder at the phenomenon through the forward observation bay. It was Shelby who found the first part of the explanation.
"It's the Atomic Ray!" he almost shrieked. "Freeing the atomic energy in the materials that make up the bodies of Alkebar's men--literally causing their flesh and bones to explode! But how--what the devil--!"
"Look!" cried Jan. She pointed far up over their heads to where the cone of faintly bluish light swung, free from the milling horde. Up and up to its apex, and there hung what appeared to be a tiny cocoon of burnished silver.
The girl peered through her binoculars for a long moment. "I see the name. It is the _Selba_," she said. "Hekalu has made a mistake--he's attacking the wrong force! Or--or some ally of ours has gained control of the ship!" she hazarded.
"No time to make guess now," said Telaba. "To fight, much better." He had returned to the signaling mechanism, and was working it with cool efficiency, rallying his battered forces.
Like tigers they fell upon the Alkebarians, shattering them out of existence with a steady storm of rifle bullets. They met with only a weak resistance for the foe seemed to realize that the fates had played them false. The blue ray had been their promise, and now, like the sword of their ancient god of destruction, it was weaving calmly this way and that, snuffing them into nothingness. The Black Emperor's horde was dissolving, scattering.
Battalions of terrified Space Men poured past the rebel chieftain's car, shooting only hurried and ineffective volleys at their enemies, who pressed fiercely upon them. And never did Jan and Shelby miss a chance to spray them with searing bursts of machine-gun fire.