Petra Johann has written a new, exciting crime novel with "The Sister" Like "The Bookseller" before it, the novel promises fast-paced suspense. A captivating and mysterious detective novel about two sisters and the question of what we really know about each other.

The term detective novel is rather misleading. So if you're expecting a cozy thriller, you're in the wrong place. This novel starts off a bit sluggish, but gains momentum and develops into a gripping story that leaves the reader with an oppressive feeling.