There was a long silence. They finished eating and then Dana stood up and said, "I'm going out on the lawn for a while." She unzipped her golden gown, stepped out of it to reveal a pair of tartan shorts that matched his, and a narrow halter. "You thought those up while we ate," he said. It annoyed him to be copied, though he did not know why. She laughed at him silently, tossed her auburn hair back from her face and went out of the roofless house, holding the gold dress casually over her bare arm. Eudalia took him to the nursery. He was irritated now in another, angrier way. The infants, protected by cellophane-like coverlets, were asleep. "They never cry," the thin woman told him. "But they grow--God, how they grow!" "Good," said Tennant, fighting down his anger. He kissed her, held her close, although neither of them felt desire at the moment. Their captors had seen to that; it wasn't Eudalia's turn. Tennant said, "I wish I could do something about this. I hate seeing Dana so bitter and Olga so scared. It isn't their fault." "And it's not yours," insisted Eudalia. "Don't let them make you think it is." "I'll try not to," he said and stopped, realizing the family party was over. He had felt the inner tug of command, said good-by to the women and returned to his smaller compound within its own barrier dome. Then came the invisible aura of strain in the air, the shimmering illusion of heat that was not heat, that was prelude to his teleportation ... if that were the word. It was neither pleasant nor unpleasant; it _was_, that was all. He called it the training hall, not because it looked like a training hall but because that was its function. It didn't actually look like anything save some half-nourished dream a surrealist might have discarded as too nightmarish for belief. As in all of this strange universe, excepting the dome-cages in which the captives were held, the training hall followed no rules of three-dimensional space. One wall looked normal for perhaps a third of its length, then it simply wasn't for a bit. It came back farther on at an impossible angle. Yet, walking along it, touching it, it felt perfectly smooth and continuously straight. The opposite wall resembled a diagonal cross-section of an asymmetrical dumbbell--that was the closest Tennant could come to it in words. And it, too, felt straight. The floor looked like crystal smashed by some cosmic impact, yet it had reason. He _knew_ this even though no reason was apparent to his three-dimensional vision. The ceiling, where he could see it, was beyond description. The captor Tennant called _Opal_ came in through a far corner of the ceiling. He--if it was a he--was not large, although this, Tennant knew, meant nothing; Opal might extend thousands of yards in some unseen direction. He had no regular shape and much of him was iridescent and shot with constantly changing colors. Hence the name Opal.