This series imagines Billy Boyle, Boston copy and nephew(ish) of Dwight Eisenhower on Ike's staff looking into crimes ranging from murder to smuggling and espionage. Billy's been through North Africa, Scilly, Italy, England, and Ireland as part of his assignment. Ably assisted by Lieutenant Piotr Kazimierez of the Polish Army in Exile, Bill and Kaz travel to the Solomon Islands to investigate the murder of one of the indigenous coast watchers. Complicating things is that the prime suspect is a young PT boat caption, Jack Kennedy. Benn's research is always top-notch, and he does a great job of using his novels to shine a lot on some less well-known parts of World War II.