Set in 1930 Berlin, this fine novel from Nova (The Good Son
) smoothly combines crime and politics. Armina Treffen, who works for the serious crimes section of the Berlin police department and has a successful track record catching serial killers, goes after a fiend who strangles his female victims and leaves their abused bodies in the Tiergarten. Treffen’s investigation is interwoven with the story of the title character, Gaelle, a 22-year-old prostitute with an alluring facial scar from a car accident, and her 16-year-old pimp, Felix. A mysterious gentleman, Bruno Hauptmann (not to be confused with the man executed for kidnapping the Lindbergh baby), recruits Gaelle to pass along any information about what, say, the Communists are up to that she might pick up on the job. While those expecting a conventional police procedural may be disappointed, the author’s evocative portrait of Weimar Germany and sophisticated portrayals of the lead characters will satisfy most readers. (Feb.)