With extraordinary tenderness and insight, the Booker Prize winner and bestselling author of Atonement takes us into the dark territory of a marriage devastated by the loss of a child. Stephen Lewis, a successful writer of children's books, is confronted with the unthinkable: his only child, three-year-old Kate, is snatched from him in a supermarket. In one horrifying moment that replays itself over the years that follow, Stephen...