he tortured slave was rapidly disappearing! Another shriek left his lips, to be broken off halfway. In an instant nothing was left of the struggling body but a wisp of greasy black smoke!

Dex stared stupidly at the tube in his hand. Then, as a squeak of agony sounded from a Rogan in front of him, his mind grasped what had happened. Somehow its mechanism had been jarred into functioning when he dashed it against the groping arm. In some way its death dealing power had been unleashed. With a cry of exultation, Dex began to use it!

The Rogan in front of him, squealing, collapsed on the floor, dwindling swiftly into nothingness. Dex turned the mysterious death against another teetering creature. It too went up in oleaginous smoke.

The Rogan leader came next. Dex whirled the tube in his direction, and saw him go down. Then he sprang to annihilate still another grotesque monster who had almost reached the bench on which were the other tubes. He shouted and raved as this fourth Rogan crumbled. Torture him, would they! Plan to capture Earth, would they! He'd kill off the whole damned population with this tube!

The Rogan survivors, squeaking in panic, gave over their attempts to retrieve the tubes. They dove for various hiding places—under benches, behind retorts, anywhere to get away from the terror running amuck in their midst. And after them sprang Dex, mad with his sudden miraculous success, to ferret them out one by one and blow them into hell with their own horrible death-engine.


n his ecstasy of rage, Dex overlooked the Rogan leader. He had seen that attenuated monstrosity go down, and had assumed he was dead. But such was not the case. In the corner Dex had vacated when he sprang after the fleeing guard, the tall leader twisted feebly and sat up.

One of his four arms was missing, a smoking stump showing where the annihilating ray from the tube had blasted it off at the shoulder. But he was far from being dead. With cold purpose in his great staring eyes, he moved snakily toward the bench Dex had now left unguarded.

The Earthman got another Rogan; whirled to track down still another. Promptly the leader sank motionless to the floor. The Rogan leader continued his crawling. He reached the bench, fumbled up and along its surface for the nearest tube.