"It says it doesn"t matter. Kepta. Kepta"s what it calls itself. It says" His voice gave way again. "-says it"s got no-military aims. That it could take our species out. The whole human race. Says it"s not interested."

The doppelganger stared at him.

"I think," Rafe said, "maybe it could, near enough as wouldn"t matter. Its tech is-way ahead. Got circuits, memory storage, stuff I can get around; it"s mechanical, like that. But the power it throws around, the way its computers work" He shut his eyes while he swallowed; it hurt. "I don"t know comp"s insides; you know that; we just run the things. But this ship"s got tricks we don"t. That"s a fact. Doesn"t even hurt to say. It runs through our heads all it likes, digs up everything it wants. Think of trying to defend our s.p.a.ce from one of us who"d just inherited this whole ship and aimed it at humankind. If we wanted to-we could be real trouble, given what this has. And it is trouble. Knows every target. Every ship." He blinked. Tears spilled, a wetness at outer edge of his right eye. "Amazing what"s not cla.s.sified. Can"t be, can it? Where worlds and stations are-any human knows the star names, and G.o.d help us, we know the charts. Any human knows how to run machines; so it knows what we"ve got. And what we don"t have. That too."

"How many of it are there?"

"That"s a real good question, isn"t it? It says /. That"s all I know."

"Easier if it were."

"Easier to what? Fight this thing?"

"Got nothing better to do," the doppelganger said. "Maybe it"s going to do everything it said, let you go, just go its way and let human s.p.a.ce alone. If it does, that"s fine. If it doesn"t-well, we"re still here, aren"t we? We"ll fix it."

"It can shut you down."

"So," the doppelganger said with a small, worried shrug. "There"s several of us, aren"t there?"

"One of us" Rafe felt a new and spreading chill. "Rafe, there"s five of us."

"How, five?"

"Versions. Me. One before I waked. That made you, but it still exists. Naive as it ever was. There"s you; that"s three. There"s the version of you it just got. Four. There"s the me it recorded, the stupid one that walked into that lab and lay down where it said, and let itself be recorded because it had no way to know"

"No way to stop it either."

"But that"s five. You see what the difference is. Mindsets. Number one"s straight out of the wreck, shaken up and scared; two"s me, who"s been through everything; three"s you,-we"re oldest, seen the most. Four"s you without this meeting; five"s me who was willing to lie down in that machine and hoped I"d get out It can take any branch of us it likes. Live in it. Watch it work. Twist it any way it likes."

"You mean it"s not just a mask it wears," the doppelganger said, his brow knit up in worry, in far too little worry.

Rafe stared at him. Tell him? he wondered. Tell him what he is? He knew his own limits, how much truth he could bear. Sorry, brother, you"re repeatable. Jtilan, Paid, them too.

"Maybe it"ll really let you go," the doppelganger said at last. "I hope it does."

"You"re lying," Rafe said. "You need me."

The doppelganger shook his head. "No. I want you out of here. With all the rest that means. That it"s not interested in us. That it won"t attack."

"And what becomes of you, then? You don"t die, man. You can"t. What happens to you?" He wished at once he had never said it. He saw the fear it caused, the sudden freezing of mirror-Rafe"s expression.

The doppelganger shrugged then. "That is a problem, isn"t it?" He dropped down to sit flat against the floor, against the illusion of it- -because he expects a floor, Rafe thought.

"But it"s our problem," the doppelganger said. "Not yours. For one thing you can"t very well tell it no. For another-let"s just get you out of here, if we can. You can get hurt. Call it sympathy pains, if you like. Self-preservation. Something of the sort. Just take our surviving substance out of here, first chance you get. What"s it going to do, walk into Paradise Station with you?"

"Capsule with a beeper."

The doppelganger frowned. "Chancy."

"Scares me too. But it was the best you could think of."

"Don"t make jokes like that."

"Sorry. But it"s true."

The doppelganger slumped, arms against his knees. "At least it"s not going inside Paradise," he said.

"At least. There"s that to be grateful for." He leaned back against the wall, tucked the blanket up about his arms. "You don"t think you can trust Jillan-or Paul."

"I don"t know which copy I"m dealing with," the doppelganger said in desperation. "It sent me here. Without warning. Rafe, it"s got them both."

Chapter Seven.

There was no one. Where Paul had been in their confinement, was suddenly no one, in the time it took to blink, the way it had taken Rafe; and Jillan Murray lurched to her feet all in one wild motion, stifling the outcry-no good, no good to yell. The dark was absolute, featureless, soundless; she stood sense-deprived and still, bereft of everyone.

"Jillan," said a female voice. Her own doppel-ganger blinked into green-gold glow in front of her, naked flesh a little bony about the ribs.

"That you?" she said, all cold. "That you, self?"

"No," her own voice came back to her, from mirror-image lips.

Her knees wanted to shake. If she tried to run they would fail. "My turn, is it?"

It stood still, with a pensive, frowning look which slowly changed as if thought were going on behind the eyes and arrived at puzzlement. "It feels as if," it said, "you get some satisfaction from my coming round to you."

"Huh." She laughed.

"Very bitter satisfaction. You were really afraid of being discounted in favor of the men in this situation. It"s a very confused feeling."

Her skin felt like sweat she could not shed. This is crazy, she thought. Should I run?

Strong, Rafe had said. And: It got me. Got me in ways unspecified.

"Anger," the doppelganger said, "that comes through."

"That doesn"t take mind-reading. Where am I? Where are we? Dammit, why?"

The doppelganger"s head came up a bit, a centering of the eyes, her eyes, beneath an untidy fringe of bangs.

"Take a walk with me."

"Like h.e.l.l."

It blinked. "You did ask for answers."

"You can tell me what I asked. Right here."

And Paul was there, behind the doppelganger, lying still and helpless on the dark immaterial floor. He vanished as quickly. "Creation and uncreation," the doppelganger said. "That"s what you are. No more, no less."

She was shaking. Pockets, she thought extrane-ously, wanting somewhere to put her hands; her hands missed pockets, touched only naked skin. "So, well," she said, "is that trick supposed to mean something?"

"Not in terms you"re used to thinking of. Life and death are valueless. You"re here. Your body"s long since gone. But you"re still living. So was that. Now it"s gone. Want it back again?"

It was. It vanished. "Dead again," it said. "Or gone. However you define it."

She swung at the doppelganger.

She was on the floor, loose-jointed, with the memory of blinding pain, sound, shock that ached in the roots of her teeth; and it stood just out of reach. It squatted down, arms on knees.

"Doesn"t it occur to you," it said, "that I could just turn you off?"

Jillan got an elbow under her amid her shivering, pushed up, sat, as far as half squared her with its eyes. She glared at it, and nothing occurred to her, nothing in clear focus, but a dim, small fear that if she hit it again she would get the same hard shock. She had done no damage to it. None.

It sat there, a long, long moment. "Your mind"s different," it said. "Self-preservation . .. differently defined. I"ve seen you through Rafe"s eyes. Your mind is shocked at his simplicity. So is Rafe-mind, to know you so thoroughly. Devastated."

"Shut up!"

"That"s your strength," it said, this double of herself, this thing with s.h.a.ggy, disordered hair and infinity in its eyes. "Rafe-mind wouldn"t have attacked me bare-handed for anything but one of you. He"s afraid to die. So are you. But you have died, haven"t you? He"s afraid because he"s got so much to lose-you, and Paul-even his own double. He"s full of fears like that. His universe is you and Paul, quite simply; and that ship he"s lost. Himself, of course; but he"s sure I"d retaliate on you. He can"t conceive of the universe without him in it; can"t conceive of your survival if he didn"t exist. Responsibility for the whole universe. That kind of thinking"s very remote in you. . . . Not that you don"t care," it said, settling crosslegged to the floor. "Just that you don"t think in terms of being anything but alone. Not universal like Rafe; just solitary. The men take care of you; they look for nothing from you, so you think. You"d defend them if you got the chance. But you expect no chances, for you, or them. On the other hand you"ve died once, you think; and that didn"t impress you much. It didn"t affect you. You"ve still got yourself; and that"s your universe."

"Sure," she said. An icy worm crawled somewhere at her gut. "You got anything to do besides this? Let"s see your face, why not?"

"You don"t like me using this shape. Your brother"s-your husband"s; that you can tolerate. This bothers you."

"I hate your guts. Surprising?"

"And now you"re scared. Something"s got inside."

She was. She stared at the thing eye to eye and it had her own most determined look.

"Go to h.e.l.l," she said.

"Your strategy is self-defense. Around that you arrange your priorities. I understand this."

It had made her angry. It had made her afraid. It had indeed gotten through. Stupid, she thought, stupid to debate this thing. That it had her, that it lived inside her head, made her afraid not to listen to it, and that was a trap. She shut that worry down, a.s.sumed its own crosslegged pose in mockery. "Suppose we see your face. The way you really are."

"Clever," it said.

"I shut you off, didn"t I?" It smiled, her own most wicked smile. "Shut me down cold," it said.

"That brain reacts-mirror image to mine."

"When it"s on the same track. Think of children."

Back in her lap. She went off her balance, confused.

"You don"t like the idea," it said. "Rafe"s upset you didn"t live to have the kids he wanted so, he"s upset and ashamed he"s upset, and won"t mention it to you because he thinks in the first place you"re grieved at losing that chance and secondly that you"d think it affects his care for you. I know. I felt it quite distinctly."

"Thank him for me," she said hoa.r.s.ely. "Spare him my opinions."

"You did. Spare him that, I mean. Your s.e.x bears the young, with some pain; more than that the time. You bear one at a time; there had to be several. It meant going to Ajax, being absent from everything you valued, for a long period of your lifespan; it meant inactivity; it meant kids" noise and helplessness, which you don"t like; it meant pretending for years and years that you were happy when you weren"t, because your misery would affect the men, and cause them pain, and affect the kids, and ruin all the rest of the years you had left to live. Everything Rafe"s worked for-depends on you. And you hate it."

"Don"t tell them that."

"This is the center where no one comes. Death can"t affect it. This is the strategy: silence, and to strike from this place where nothing can come. This virtue. This anger that sustains you. You know your limits. You cherish no illusions. But I"m here."

"Welcome in," she said, staring through it. "Now there are two of us. You want a fight? I"ll give you one."

"Yes," it said. "I know. But I would win. I have, before. I destroyed that version of you. It was no longer whole."

"Fine," she said. There was a knot in her throat that made talking painful. "That was kind of you."

"Humor," it said.

"Absolutely."

"I want your help," it said.

She looked at it, a sudden shortening of focus, a centering of hate. "Do you?"

"You don"t fully understand," it said, "what these versions are. They"re alive."

"That one was?" She moved her eyes where Paul had lain, unconscious on the floor. "You killed it? You want my help?"

"He. That version died in his sleep, without pain. He can die-infinitely often. No," the dop-pelganger said, lifting her hand. "That wasn"t a threat. I"m explaining what you are. You have a certain integrity, right now. You"re unique, much more flexible than the template I have in storage. You"ve learned. That version of Paul I twice destroyed-never waked after the wreck. The one I sent you to keep you content, that one was from the same template; and it came to consciousness with you all settled in your state. You brought it-gently up to date; it"s more stable as a consequence. Paul, you know, doesn"t like shocks. He relies on you in these circ.u.mstances. He needs your flexibility. Your expertise as s.p.a.cers, greater than his own. Oh, I know-you"re lost. That"s why the first Paul ran off. He leaned on you and you didn"t provide the prop. So he leaned on himself. And he ran."

"O my G.o.d."

"No, indeed you didn"t get the same Paul back. And you did, in one important sense. The one you have now is healthier. He still belongs to you. The other one, the one that ran, has diverged considerably. You thanked me for destroying your damaged selves. But Paul"s first copy was damaged too. It"s not a Paul you"d understand. And a stray version of Rafe exists, that"s gone way off. Rafe has his weaknesses. That"s why I"m talking to you. The stable one. The one with the solid core. The only one it hasn"t got. Yet."

"It. What-itr "This ship has a lot of pa.s.sengers. One of them."

"And who are you?"

"Kepta. Kepta"s what to call me."

"You"re in charge?"

"Captain would be close. I"m going to copy you again. It"s the best defense. That there"ll be one version of you neither naive nor-if things go wrong-corrupt. It will hurt, Jillan. It"s not my choice. It"s just your nature."

It was gone.

And the pain began.