Emperor." They marched out into the corridor. The three guards had gone their way and no one was in sight. But from the grim look on the Martian's face, Tommy knew peril lay ahead. The door to the cell in which Rex and Jean were imprisoned was unlocked. Five Martian guards entered. The leader was in high rage. "This girl will have to do," he snapped. "The crowds in the square will not know the difference and the priests will just have to keep their mouths shut. Take her!" As three of the guards advanced on Jean, Rex went into action. He drove his knee into the groin of the leader, bending the Martian forward into a straight right that almost tore his head off. The Martian went down. His jaw structure was so thick, Rex's fist turned numb from the contact and the Martian was only dazed. Rex knew his one hope lay in getting control of the small pistol the leader carried. He lunged. The gun lay in the fallen leader's out-stretched hand. Rex's fingers touched it. But the leader's fist closed. The delay was fatal. It gave one of the guards time to take one long step and kick Rex solidly behind the right ear. Rex went down hard, smacking the floor with his face. He did not move. Jean screamed. A hard hand went brutally over her mouth, dragging her down also. The leader of the squad said, "Take her to the ceremonial room. Prepare her for the knife. Tell the priests I will be there soon." "Aye, great Lord Pandek," the guard said. Jean bit the hand that lay across her mouth. It was jerked away. She tore loose and threw herself down on Rex's unconscious body. She was pulled roughly to her feet and other hard hands dragged her away. Perhaps it was Tommy's luck that carried the party through. On the trip to the cell blocks they met only two other Martians—not soldiers—who exhibited only mild curiosity. Once in the lower tier, Maxis seemed more at home. "This is the likeliest cell block," he said. "But we can't search all those cells," Tommy said. "It would take hours. We'd surely be stopped." He was looking down a long corridor lined with bars. Other corridors intersected until the place was a maze. "You are right," Maxis said. "I have a plan that may save us time. Come. You two walk behind me