Private Berlin, Paperback/James Patterson

The 5th book in the fast-paced }Private{ series from the phenomenally popular thriller writer. Mattie Engel is one of the rising stars at Private Berlin, and believes she's seen the worst of people in her previous role with the Berlin police force. That is until her colleague and ex-fiance is found brutally murdered in an old slaughterhouse outside the city... 'Hits the ground running and the pace never misses a beat' }Daily Express{