A New York Times Bestselling Author -- In 1890s San Francisco, former Pinkerton operative Sabina Carpenter and her detective partner, ex- Secret Service agent John Quincannon, undertake what appear to be two unrelated investigations. While Sabina hunts for a ruthless lady pickpocket, Quincannon is after a slippery housebreaker who targets wealthy homes. The cases connect in a surprising fashion, but not before being complicated by two murders and the bughouse Sherlock Holmes.