I'm a little late to the Billy Boyle party. Just finished book one in the series. There are ten more, if I've counted right, and I'm looking forward to all of them.
James R. Benn created a delightful character in Billy. He's a young man - early twenties - thrust into WWII and trying to survive the best he can. He was a newly minted detective with the Boston police when the Japanese attacked Pearl Harbor. Military service was inevitable, and his family scrambled to use any avenue they had to get Billy a good posting.
Fast forward to England, and Billy's been assigned to Gen. Eisenhower. He's expected to use his detective skills.
He fakes it till he makes it - does the best he can. He reminded me so much of my sons in their early twenties. A very charming character. Benn does a terrific job conveying both England and the era, as well as the military brass.
I'm not thrilled with the fate of some of my favorite characters, but hey - it was wartime. Read the book(s.) You'll love them.
I believe the only way to get through the slings and arrows life throws at all of us is to find the humor.