didn't shatter. The pain shot up his arm, numbing, slowing, sickening. Blood spattered out from his knuckles. Birek's right swept in, across the side of his head. MacVickers went down, on his right side. Birek put a foot in the small of his back. "Down," he said. "Grovel." MacVickers twisted under the foot, snarling. He brought up his own feet, viciously, with all his strength. The pain of impact made him whimper, but Birek staggered back, thrown off balance. There was no sign of hurt in his face. He stood there, looking down at MacVickers. Suddenly, shockingly, he was crying. He made no sound. He didn't move. But the tears ran out of his eyes. A deep, slow shudder shook MacVickers. He said softly, "There's no pain, is there?" Birek didn't speak. The tears glistened over the faint, hard film on his cheeks. MacVickers got up slowly. The furrows were deep and harsh in his face and his lips were white. Loris pulled at him. Somewhere Pendleton's voice was yelling, "Hurry! Hurry, please!" The guards were doing something overhead. There was a faint crackling sound, a flicker of sparks in a circle around the top of the wall. Shivering, tingling pain swept through MacVickers from the silver collar at his throat. Men began to whisper and curse. Loris clawed at him, shoved him down the ladder, kicked his face to make him hurry. The pain abated. MacVickers looked up. The great corded legs of Birek were coming down, the soles of the feet making a faint, hard sound on the rungs. The hatch closed overhead. The voice of the dying Earthman came dry and soft over his shoulder. "Here's where you'll work until you die. How do you like it?" MacVickers turned, scowling. It was hot. The room above was cool by comparison. The air was thick and sluggish with the reek of heated oil and metal. It was a big space, running clear to the curving wall, but the effect was of stifling, cramped confinement. Machinery crammed the place, roaring and hissing and clattering, running in a circuit from huge intake pumps through meaningless bulking shapes to a forced-air outlet, with oil-pumps between them.