He had no parents, at least none his memory could truly hold. Everything he knew about where he came from came not from photographs or bedtime stories, but from the slow, weathered voice of an old man who slept beneath an overpass near the Hudson River Greenway in New York City.

Mr. Harold Whitman used to say that fate had delivered Evan to him on a night of relentless rain, when the river swelled and the world seemed determined to wash itself clean.

Evan had been barely two years old then. He couldn’t speak yet, could hardly stand. He had cried until his voice gave out, his tiny body shaking inside a plastic storage tub drifting near the riverbank like a fragile raft.

Around his thin wrist were only two things: a red braided bracelet, old and already fraying, and a damp scrap of paper, the ink nearly gone. Still, the message could be read: Please, may a kind-hearted person take care of this child. His name is Evan.

Mr. Whitman had read the note with trembling hands. He himself owned nothing—no home, no savings, no family waiting anywhere. All he had were aching legs, a worn coat, and a heart that had not yet learned how to shut itself.