In the latter part of the book, Nathaniel has grown into a young man who sets out on an almost obsessive quest to unravel the riddles of his life since the abandonment. The novel moves “forward in plot, but backwards in time” in a kind of archaeological way, as he tries to retrace the linkages with his parents, particularly his mother, and with the strange cast of characters that surrounded them. In the process, he uncovers the pernicious influence of their wartime preoccupations, as well as another love story that has had a profound impact on their lives. At the very end, revelations that would, coming from a less expert pen, be startling are gently floated onto the surface of the narrative with a quiet precision that is masterly.