Rag and Bone by James R. Benn (2010)
Billy Boyle, currently assigned to Eisenhower's staff, was formerly a cop in South Boston. When "incidents" (such as inconvenient dead bodies) occur that threaten the Allied alliances, Billy and his driver, a former Detroit cop, investigate. In this case, it is late 1943. Eisenhower is about to come to England to plan the D-Day invasion. It is very important that the Russian allies keep up their fight on Germany's eastern front while the US, Canada, and England plan invasion from the west. So, the dead body of a Soviet spy which might be linked to the recently discovered dead Polish officers in the Katyn Woods could cause big problems for the Allied cause. Part mystery, part spy thriller, the Billy Boyle series has a great feeling for wartime England.

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