the spatio-temporal chart, aching with a sorrow all the keener for my having waited for death, in full knowledge, for over a year. In my arms, I held my son and hers.
- Yes, I let it live. Why do you cry out so? Are you going to condemn me?
You cannot know what it means to hold a little atom of your own life in your arms. I may have a Computaplex for nerves and spatio-temporal charts for a bloodstream, but I do know.
I let it live. I committed that crime, too. I put it in the charge of an appropriate organization and returned when I could (in strict temporal sequence, held even with physiotime) to make necessary payments and to watch the boy grow.
Two years went by that way. Periodically, I checked the boy's LifePlot (I was used to breaking that particular rule, by now) and was pleased to find that there were no signs of deleterious effects on the then-current Reality at probability levels over 0.0001. The boy learned to walk and mispronounced a few words. He was not taught to call me "daddy." Whatever speculations the Timed people of the child-care institution might have made concerning me I don't know. They took their money and said nothing.
Then, when the two years had passed, the necessities of a Change that included the 575th at one wing was brought up before the Allwhen Council. I, having been lately promoted to Assistant Computer, was placed in charge. It was the first Change ever left to my sole supervision.
I was proud, of course, but also apprehensive. My son was an intruder in the Reality. He could scarcely be expected to have analogues. Thought of his passage into nonexistence saddened me.
I worked at the Change and I flatter myself even yet that I did a flawless job. My first one. But I succumbed to a temptation. I succumbed to it all the more easily because it was becoming an old story now for me. I was a hardened criminal, a habituŠ¹ of crime. I worked out a new Life-Plot for my son under the new Reality, certain of what I would find.
But then for twenty-four hours, without eating or sleeping, I sat in my office, striving with the completed Life-Plot, tearing at it in a despairing effort to find an error.
There was no error.
The next day, holding back my solution to the Change, I worked out a spatio-temporal chart, using rough methods of approximation (after all, the Reality was not to last long) and entered Time at a point more than thirty years upwhen from the birth of my child.
He was thirty-four years old, as old as I myself. I introduced myself as a distant relation, making use of my knowledge of his mother's family, to do so. He had no knowledge of his father, no memory of my visits to him in his infancy.
He was an aeronautical engineer. The 575th was expert in half a dozen varieties of air travel (as it still is in the current Reality), and my son was a happy and successful member of his society. He was married to an ardently enamored girl, but would have no children. Nor would the girl have married at all in the Reality in which my son had not existed. I had known that from the beginning. I had known there would be no deleterious affect on Reality. Otherwise, I might not have found it in my heart to let the boy live. I am not completely abandoned.
I spent the day with my son. I spoke to him formally, smiled politely, took my leave coolly when the spatio-temporal chart dictated. But un derneath all that, I watched and absorbed every action, filling myself with him, and trying to live one day at least out of a Reality that the next day (by physiotime) would no longer have existed.
How I longed to visit my wife one last time, too, during that portion of Time in which she lived, but I had used every second that had been available to me. I dared not even enter Time to see her, unseen.
I returned to Eternity and spent one last horrible night wrestling futilely against what must be. The next morning I handed in my computations together with my recommendations for Change.
Twissell's voice had lowered to a whisper and now it stopped. He sat there with his shoulders bent, his eyes fixed on the floor between his knees, and his fingers twisting slowly into and