Rex floated in a sea of pain. Sadistically beaten by the guards who had overpowered him, he lay on the floor of the cell; aware of the blood-pool around him and of the pain, but unable to force his body into action. He knew the door to the cell stood open. He forced his mind to focus on this point. It could mean only one thing. The guards had left him for dead. The thought cheered him. He was not dead. Therefore he was living on borrowed time—a break men in his profession seldom got. Another thought intruded. Maybe he wasn't lucky. Maybe he was crippled. He had as yet not inventoried the damage. Was it worse than the pain indicated? He searched for numbness and found none. He moved and the pain increased. That was good. Nothing paralyzed. But was an arm or leg broken? Was there a spine injury? Resolutely, he forced his muscles to respond. Arms, legs, bones okay. He got to his feet and swayed dizzily. Pain shot through his head. He almost blacked out, clawed at the wall, kept himself from falling. He got hold of a bar and held himself erect while the floor spun and the walls tilted. Then they steadied away. His stomach settled back into place, the nausea giving ground sullenly. After a while, he decided he was all right. As all right as he would be for a long time. He looked around for a weapon. All the bars were in solid rock. The legs of the bunk were riveted down. He hunted and stood finally looking at his two fists. They were all he had. They would have to do. He stepped out of his cell and saw two guards approaching along the corridor. He debated flight. He stopped. There were the two fists. Might as well find out right now how effective they would be. He crouched and stood waiting.... Jean moved in a daze. She had been taken by the Martian guard through long corridors, into a splendid part of whatever building this was. At one point during the trip, she lashed out suddenly, bit the hand across her mouth and raked her nails across a hard face. The Martians had been in no mood to tame a tigress the gentle way. The big Martian, after snarling from the bite, swung his other fist viciously. The blow rang against Jean's head. She fell. The Martians growled at each other, picked her up roughly and carried her, half-conscious,