Warlight by Michael Ondaatje, 289 pages. Audio read by the author.
Set in post WWII England, this is Nathaniel's story. A semi-abandoned boy grows up to be a lonely man who is obsessed with finding out what his mother, and, to a lesser extent, his father were doing during the war that caused them to go. Nathaniel, nicknamed Stitch by his mother, and his sister, Rachel, or Wren, are left in the care of their parents' associate, Walter, a man they call the Moth.
After being left largely to their own devices for a year or so, Nathaniel tries to find out what had really happened to him, who the strange people around him were, and what his parents have been up to. A fascinating book, ably narrated by the author.