Road of Bones

Billy Boyle is sent to the heart of the USSR to solve a double-murder at a critical turning point in the war in this latest installment of critically acclaimed James R. Benn's WWII mystery series.
It’s September 1944, and the US is poised to launch Operation Frantic, a shuttle bombing mission to be conducted by American aircraft based in Great Britain, southern Italy, and three Soviet airfields in the Ukraine. Tensions are already high between the American and Russian allies when two intelligence agents—one Soviet, one American—are found dead at Poltava, one of the Ukrainian bases. Billy is brought in to investigate, and this time he's paired, at the insistence of the Soviets, with Captain Kiril Sidorov of the Red Air Force, a dangerous rival of Billy’s from past encounters.
 
In the course of an investigation that quickly sprawls out of control, Billy is aided by the Night Witches, a daring regiment...