The Pale House: Gregor Reinhardt series, Book 2

When German intelligence officer Captain Reinhardt is reassigned to a new branch of the military police, his position separates him from the allies he has made. This includes a circle of fellow dissenting Germans who formed a resistance cell against the Nazis. Reinhardt witnesses a massacre of civilians in Yugoslavia, only to discover there is more to the incident than anyone believes. When five mutilated bodies turn up, he knows the stakes are growing more important - and more dangerous…