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"That new Reality still exists. My son is still out there in the appropriate portion of the Century. I did that to him. It was my mind and my Computaplex that discovered this new life for him, and my word that ordered the Change. I had committed a number of crimes for his sake and for his mother's, but that one last deed, though strictly in accordance with my oath as an Eternal, has always seemed to me to be my great crime, the crime."
There was nothing to say, and Harlan said nothing.
Twissell said, "But you see now why I understand your case, why I will be willing to let you have your girl. It would not harm Eternity and, in a way, it would be expiation for my crime."
And Harlan believed. All in one change of mind, he believed!
Harlan sank to his knees and lifted his clenched fists to his temples. He bent his head and rocked slowly as savage despair beat through him.
He had thrown Eternity away, and lost Noys-when, except for his Samson-smash, he might have saved one and kept the other.
15. Search through the Primitive
Twissell was shaking Harlan's shoulders. The old man's voice urgently called his name.
"Harlan! Harlan! For Time's sake, man."
Harlan emerged only slowly from the slough. "What are we to do?"
"Certainly not this. Not despair. To begin with, listen to me. Forget your Technician's view of Eternity and look at it through a Computer's eyes. The view is more sophisticated. When you alter something in Time and create a Reality Change, the Change may take place at once. Why should that be?"
Harlan said shakily, "Because your alteration has made the Change inevitable?"
"Has it? You could go back and reverse your alteration, couldn't you?"
"I suppose so. I never did, though. Or anyone that I heard of."
"Right. There is no intention of reversing an alteration, so it goes through as pla
"For Time's sake, how?"
"I'm not sure yet, but there must be a way. If there were no way, the alteration would be irreversible; Change would come at once. But Change has not come. We are still in the Reality of the Mallansohn memoir. That means the alteration is reversible and will be reversed."
"What?" Harlan's nightmare was expanding and swirling, growing murkier and more engulfing.
"There must be some way of knitting the circle in Time together again and our ability to find the way to do it must be a high-probability affair. As long as our Reality exists, we can be certain that the solution remains high-probability. If at any moment, you or I make the wrong decision, if the probability of healing the circle falls below some crucial magnitude, Eternity disappears. Do you understand?"
Harlan was not sure that he did. He wasn't trying very hard. Slowly he got to his feet and stumbled his way into a chair. "You mean we can get Cooper back--"
"And send him to the right place, yes. Catch him at the moment he leaves the kettle and he may end up in his proper place in the 24th no more than a few physiohours older; physiodays, at the most. It would be an alteration, of course, but undoubtedly not enough of one. Reality would be rocked, boy, but not upset."
"But how do we get him?"
"We know there's a way, or Eternity wouldn't be existing this moment. As to what that way is, that is why I need you, why I've fought to get you back on my side. You're the expert on the Primitive. Tell me."
"I can't," groaned Harlan.
"You can," insisted Twissell.
There was suddenly no trace of age or weariness in the old man's voice. His eyes were ablaze with the light of combat and he wielded his cigarette like a lance. Even to Harlan's regret-drugged senses the man seemed to be enjoying himself, actually enjoying himself, now that battle had been joined.
"We can reconstruct the event," said Twissell. "Here is the thrust control. You're standing at it, waiting for the signal. It comes. You make contact and at the same time squeeze the power thrust in the downwhen direction. How far?"
"I don't know, I tell you. I don't know."
"You don't know, but your muscles do. Stand there and take the controls in your hand. Get hold of yourself. Take them, boy. You're waiting for the signal. You're hating me. You're hating the Council. You're hating Eternity. You're wearying your heart out for Noys. Put yourself back at that moment. Feel what you felt then. Now I'll set the clock in motion again. I'll give you one minute, boy, to remember your emotions and force them back into your thalamus. Then, at the approach of zero, let your right hand jerk the control as it had done before. Then take your hand away! Don't move it back again. Are you ready?"
"I don't think I can do it."
"You don't think-- Father Time, you have no choice. Is there another way you can get back your girl?"
There wasn't. Harlan forced himself back to the controls, and as he did so emotion flooded back. He did not have to call on it. Repeating the physical movements brought them back. The red hairline on the clock started moving.
Detachedly he thought: The last minute of life?
Minus thirty seconds.
He thought: It will not hurt. It is not death.
He tried to think only of Noys.
Minus fifteen seconds.
Noys!
Harlan's left hand moved a switch down toward contact.
Minus twelve seconds.
Contact!
His right hand moved.
Minus five seconds.
Noys!
His right hand mo-ZERO-ved spasmodically.
He jumped away, panting.
Twissell came forward, peering at the dial. "Twentieth Century," he said. "Nineteen point three eight, to be exact."
Harlan choked out, "I don't know. I tried to feel the same, but it was different. I knew what I was doing and that made it different."
Twissell said, "I know, I know. Maybe it's all wrong. Call it a first approximation." He paused a moment in mental calculation, took a pocket computer half out of its container and thrust it back without consulting it. "To Time with the decimal points. Say the probability is 0.99 that you sent him back to the second quarter of the 20th. Somewhere between 19.25 and 19.50. All right?"
"I don't know."
"Well, now, look. If I make a firm decision to concentrate on that part of the Primitive to the exclusion of all else and if I am wrong, the chances are that I will have lost my chance to keep the circle in time closed and Eternity will disappear. The decision itself will be the crucial point, the Minimum Necessary Change, the M.N.C., to bring about the Change. I now make the decision. I decide, definitely--"
Harlan, looked about cautiously, as though Reality had grown so fragile that a sudden head movement might shatter it.
Harlan said, "I'm thoroughly conscious of Eternity." (Twissell's normality had infected him to the point where his voice sounded firm in his own ears.)
"Then Eternity still exists," said Twissell in a blunt, matter-of-fact ma
Twissell studied his cigarette and said, "The question that now confronts us is this: What will Cooper do when he finds himself in the wrong Century?"
"I don't know."
"One thing is obvious. He's a bright lad, intelligent, imaginative, wouldn't you say?"
"Well, he's Mallansohn."