Marberry disappeared. Greg said, "Fire! Keep on firing! They're bewildered. Maybe they'll break and run."

Again the salvo of gunfire rocked the corridor, and again foremost figures slumped to the ground, slicing the ranks of the attackers. But now, peering through the grill, Greg saw that he had underestimated the manpower of the attackers. They were not a dozen or two dozen ... there were a hundred of them milling, now, in the small clearing, and the path was still clogged with the silvery bodies of others lumbering to the attack.

What happened in the next hour was such stuff as nightmares are made of. At first Greg cautioned himself each time he pulled the trigger of his rifle that he must make his shot count; later he fell into a dull, scarce-comprehending state of mono-existence wherein he was conscious only of the nerveless and repeated movements of his hands. Aim ... load ... fire! Aim again ... load ... fire ... aim....

And at first there was little need for aiming. For the Titanians, savagely prodigal of life, knew only one way of fighting—to press forward in brute force, attempting to crush down the metal grill that stood between them and their vengeance. To fire into that thick press of bodies was sure havoc. The Titanians were weaponless save for the cudgels they whirled about their heads threateningly; nor could they break down the barrier so long as the succeeding hands of all who gripped it became the limp, impotent hands of the dead.

Then at last even their dim, animal intelligence saw that this was a losing battle. A cry rose and was shuttled from mouth to mouth. The silvery figures, now gray in ever-gathering dusk, wisped away from the cave-mouth.

"Licked 'em!" cried Hannigan. "They're running, by Peter! Golly, Greg! Look at that pile out there!"

There was awe in his voice, distaste in Greg's eyes as he looked on the motionless mound heaped before the cave. But Greg said, "Don't get rash! They may be planning a new attack. Breadon—what's wrong with you, man?"

Ralph Breadon grinned wryly.

"Fortune's favored child, that's me! They didn't have any weapons to shoot me with, so I shot myself. Bounced a bullet off the grill. It came back and pinked my arm."

"Go get it dressed. There it comes!" cried Greg.