Tom felt his stomach knot with the thrill of going into the unknown as he watched the screen, but part of the time he was running the lights of the control board through his mind, checking the actions of Bart's big fingers as Bart confidently punched the keys. Then he caught sight of Willie's tense face. It was white, with little splotches of pink, and his slender hands were gripping the chair he was sitting in. "Here we go," Bart shouted exultantly, as the big green light flashed on. He hit the big green key with a stubby forefinger. The auto pilot fired the jets, the ship slowed in its descent, and they were pushed down gently in their chairs. As the spot Bart had picked came up on the screen, they could see the bare red of the ridge sticking up out of the yellow-green of the flat land. Then the yellow-green was right below them, turning black as the jets burned it to ashes. They hovered a minute, then came to rest with a creaking thud that echoed through the ship. The jets cut out, leaving their ears ringing. "Didn't know whether we'd make it or not," Willie said. He unobtrusively wiped the glistening sweat off his slender palms on his coveralls, as he took his place at the panel. When the tests were done, Bart grabbed the tally card as soon as the computer dropped it. "No bacteria at all. Planet's completely sterile. Let's get outside." * * * * * Tom stopped beside Bart on the narrow strip of red sand at the edge of the vast blue plain of smooth water. The water came right up to their feet without movement, just small ripples that lapped the red sand. The air was clean and brisk, and the wind was soft on his cheek. Bart arched his thick chest and pulled in a great lung full of air. "This is wonderful. Makes a man feel alive again." He yanked the zipper on his coveralls and pulled them off. Then he jumped in the air, swinging his thick arms. Tom grinned at the calisthenics as he peeled off his own coveralls. The sun was warm on his bare white skin. Bart had pulled off his boots and with just his shorts left, charged into the water, and made a flat smashing dive. He leaped and splashed the water like a porpoise. Tom grinned at him, and just as he had done during most of his boyhood on Earth, took a gulp of air and dived down into the clear silent depths to the twenty foot deep bottom. He drifted slowly among the rocks. Bart drifted beside him as the seconds ticked by. Tom wished this was Earth and there were some fish to hunt in the clear water with a three pronged spear. Then, as his lungs seemed bursting and he had to have air, he put his feet against the bottom and shoved himself to the surface. Several seconds later, Bart burst through the surface and bobbed beside him. They floated until they got their wind back. "You don't use a suit and oxygen tanks," Bart said. "You couldn't stay under two seconds if you did."