"Not knowing word for how many. More than you," he said, "more on voyage than you, and more more at home." "Home? Where's home?" "The system Lluagor, home planet Chwosst," said the other, sitting up cautiously and clasping his knees. He smiled. His expression said clearly, If these insignificant mites want to question me, what harm can it do? Trace, fighting a surge of Irish rage, went on. Bill prowled over to the openings that showed the deserted theater, squinting through the gloom. They had turned on the lights in the projection booth, and that worried him, for the searchers might come in below at any minute. He found the house lights and threw them on, so that the booth would not glow a warning. Thank heaven the power plant's still working, he thought. As Trace hammered at the green man with questions, Bill began tinkering with the machines. * * * * * Bird-foot was saying, in his unpleasant tones, "How many saucers about twenty to forty thousand, this worked out by our mathematicians Chwefft and Hlamnig after learning your system of numbers. Interesting primitive system without knowing sub-space and lacking even name for _fpiolhesit_." "Sub-space!" exclaimed Slough, darting forward until he stood directly before the alien. "How did he learn the name for that concept, I wonder? But it makes sense. Certainly it would seem logical that such an advanced race would have conquered the mathematically-conceived sub-space, in order to travel interdimensionally from galaxy to galaxy. How else could they go distances that even at light's speed would take a portion of eternity?" The green man eyed Slough, his head cocked. "Intelligent," he croaked. "Come closer." He reached out a finger that was crooked as if to beckon, bumped it against Slough, and recoiled, an expression of dismay fleeting over his hard features. Then the olive-green skin smoothed out. "Ah. Small, small man. Not know." "You got a looney," said Bill. "He's not crazy," said Trace. "I had that sort of figured out before." He left the subject as Bill frowned at him, quite uncomprehending, and said to the alien, "What do you want here?" "Your planet." The words were rasped out without emotion, but they were as cold as the wind of January that played outside the theater. Trace said, "Why?"