Courtesy of Tor’s promotion of free ebooks, I got Farthing by Jo Walton, which was nominated for a Nebula as well as for Campbell award.
It is an alternate history novel in which Britain makes peace with Nazi Germany in World War II. It is a mystery about the murder of a politician who was instrumental in the peace negotiations with the Nazis.
It is a good, fast read with the murder mystery and the country house in the foreground but politics and the ramifications of the peace deal are also present. I finished it in a single reading session.