He bit the thought off, feeling the tension building inside him. He had never considered himself the hero type. He had prided himself that his ability to handle hot planes was a reflection of his competence rather than courage. Courage, to him, meant capable performance in the face of fear. He had never known fear in any type of aircraft, hence never before had courage been a requisite of his job. It was that simple to him. His thorough knowledge of the Aztec's theoretical flight characteristics had given him extreme confidence, thus the feeling of tension was distracting. He held his hand out. It seemed steady enough. Prochaska caught the gesture and said, "I'm a little shaky myself." Crag grinned. "They tell me the first thousand miles are the hardest." "Amen. After that I won't worry." The countdown had begun. Crag looked out the side port. Tiny figures were withdrawing from the base of the rocket. The engine of a fuel truck sounded faintly, then died away. Everything seemed unhurried, routine. He found himself admiring the men who went so matter-of-factly about the job of hurling a rocket into the gulfs between planets. Once, during his indoctrination, he had watched a Thor firing ... had seen the missile climb into the sky, building up to orbital speed. Its launchers had been the same sort of men--unhurried, methodical, checking the minutiae that went into such an effort. Only this time there was a difference. The missile contained men. Off to one side he saw the launch crew moving into an instrumented dugout. Colonel Gotch would be there, puffing on his pipe, his face expressionless, watching the work of many years come to ... what? He looked around the cabin for the hundredth time. Larkwell and Nagel were strapped in their seats, backs horizontal to the floor, looking up at him. The tremendous forces of acceleration applied at right angles to the spine--transverse g--was far more tolerable than in any other position. Or so the space medicine men said. He hoped they were right, that in this position the body could withstand the hell ahead. He gave a last look at the two men behind him. Larkwell wore an owlish expression. His teeth were clamped tight, cording his jaws. Nagel's face was intent, its lines rigid. It gave Crag the odd impression of an alabaster sculpture. Prochaska, who occupied the seat next to him facing the control panels, was testing his safety belts.