* * * * * Larger than the others, Odin landed awkwardly upon the floor of the car. Before he could jump aside, another passenger piled upon him. It was a girl, and the perfume in her hair was the same that Maya had always used. He helped her to her feet and drew her aside just as another voyager came sliding down. The girl was Nea. Somehow, he had an odd feeling that Maya was here. He was just a bit annoyed at Nea, and wished to himself that she wasn't making the trip. She shook her black curls and thanked him softly. "How awkward of me," she explained. "It wouldn't have happened if I had not been carrying this--" She held up a little round satchel. It was exactly like the cases that people used in his country for carrying bowling balls. Odin was puzzled. And he assured himself that he would never understand women. Why would the girl be carrying a bowling ball with her into outer space? Odin joined Wolden, Ato, and Gunnar in the "engine" of the bumpy little train. Here were real windows of quartz, and he could see more of the moon's surface as the tractor and its jointed cars wheeled about in a great circle and headed off in the direction from whence it had come. Once there was a loud _Ping_ upon the roof above them. The tractor shook. "A meteorite," the driver explained. "They're thick tonight. Don't worry. There's a screen upon the roof that slows them down and melts 'em. The larger ones never reach us. Some of the tiny ones get through." They came to a sheer mountain which in the beams of the tractor looked like a silver pyramid painted across a jet-black canvas. As though answering an unheard vibration, a door opened and they lumbered in. The door closed behind them. For a moment they were in such darkness that even the beam from the tractor seemed alien. Then another door started to open before them and a widening shaft of light was there to greet them. Odin was thinking that each race must have some craft at which it excels all others. If so, then the building of air-locks was certainly the Brons' highest art. Then they advanced into a cavern where five tiny atomic suns were strung out at equal distances upon the ceiling. The cavern was geometrical. Roughly, it was a mile long, half a mile wide, and half a mile high. The floor was smooth; the walls were sheer. "As though they had been shaped by human hand," Odin thought, but he soon learned that other hands had sheered those walls. In the very middle of the cavern was a little lake, shaped in the same proportion as the floor. It was surrounded by green grass, and at one corner was a profusion of water-lilies and cat-tails. There were no trees, but flowers were everywhere. A few small bushes. Here and there were great clumps of vines. Odin guessed them to be wild cucumber and trumpet vines, for they had grown riotously.