“Mrs. Hayes,” he said. “I wondered if you’d come.”

He was seventy-four. He had done four years in the nineties for something he did not specify and had spent the rest of his life on the edge of other people’s paperwork, and he was, I think, the single most useful human being in this entire story, and no one will ever put that anywhere.

“Why did you help him?” I asked. “You didn’t know him.”

“He came in with two boys in the back of a truck who hadn’t eaten,” Caleb said. “That’s it. That’s the whole reason. People want a better one.”

I asked him what Daniel was like. Not the operational details — Bennett had all of that. What he was *like.*

Caleb thought about it for a long time, and the oxygen concentrator cycled twice.