"My rank is captain."

"I knew it.... I knew it when those two Mechanists arrived. They were so polite, and so suspicious -- I think they would have killed me at once if they hadn't hoped to bribe or torture some secret out of me. They scared the life out of me, Captain Afriel.... You scare me, too."

"We live in a frightening world, Doctor. It's a matter of faction security."

"Everything's a matter of faction security with your lot," she said. "I shouldn't take you any farther, or show you anything more. This Nest, these creatures -- they're not intelligent, Captain. They can't think, they can't learn. They're innocent, primordially innocent. They have no knowledge of good and evil. They had no knowledge of anything. The last thing they need is to become pawns in a power struggle within some other race, light-years away."

The tunneler had turned into an exit from the fungal chambers and was paddling slowly along in the warm darkness. A group of creatures like gray, flattened basketballs floated by from the opposite direction. One of them settled on Afriel's sleeve, clinging with frail whiplike tentacles.

Afriel brushed it gently away, and it broke loose, emitting a stream of foul reddish droplets.

"Naturally I agree with you in principle, Doctor," Afriel said smoothly. "But consider these Mechanists. Some of their extreme factions are already more than half machine. Do you expect humanitarian motives from them? They're cold, Doctor -- cold and soulless creatures who can cut a living man or woman to bits and never feel their pain. Most of the other factions hate us. They call us racist supermen. Would you rather that one of these cults do what we must do, and use the results against us?"

"This is double-talk." She looked away. All around them workers laden down with fungus, their jaws full and guts stuffed with it, were spreading out into the Nest, scuttling alongside them