And his joints ached. And his head hurt sometimes like it was going to split in two. Because, in fact, it was trying to do exactly that. The soft spot on the top of his head could not seem to expand fast enough to make room for his growing brain.

The doctors loved that part. To find out what it did to the mental function of an adult to have the brain grow. Did it disrupt memory? Or merely add to capacity? Bean submitted to their questions and measurements and scans and bloodlettings because he might not find all his children before he died, and anything they learned from studying him might help them.

But at times like this he felt nothing but despair. There was no help for him, and none for them, either. He would not find them. And if he did, he could not help them.

What difference has my life made? I killed one man. He was a monster, but I had it in my power to kill him at least once before, and failed to do it. So don’t I share in the responsibility for what he did in the intervening years? The deaths, the misery.

Including Petra’s suffering when she was his captive. Including our own suffering over the children he stole from us.

And yet he went on searching, using every contact he could think of, every search engine on the nets, every program he could devise for manipulating the public records in order to be ready to identify which births were of his children, implanted in surrogates.

For of that much he was certain. Achilles and Volescu had never intended to give the embryos back to him and Petra. That promise had only been a lure. A man of less malice than Achilles might have killed the embryos—as he pretended to do when he broke test tubes during their last confrontation in Ribeirão Preto. But for Achilles, killing itself was never a pleasure. He killed when he thought it was necessary. When he actually wanted to make someone suffer, he made sure the suffering lingered as long as possible.

Bean’s and Petra’s children would be born to mothers unknown to them, probably scattered throughout the world by Volescu.

But Achilles had done his work well. Volescu’s travels were completely erased from the public record. And there was nothing about the man to make him particularly memorable. They could show his picture to a million airline workers and another million cab drivers throughout the world and half of them might remember seeing a man who looked “like that” but none of them would be sure of anything and Volescu’s path could not be retraced.

And when Bean had tried to appeal to Volescu’s lingering shreds of decency—which he hoped existed, against all evidence—the man had gone underground and now all Bean could hope for was that somebody, some agency somewhere, would find him, arrest him, and hold him long enough for Bean to…