"London, 1885. Three years before the Whitechapel killings, London is a city of fog and darkness. A severed head is dredged from the Thames; ten miles away, a woman's body is discovered on Edgeware Road. The famed American detective William Pinkerton is summoned by Scotland Yard to investigate. The dead woman fits the description of a grifter Pinkerton had been pursuing for a long time--someone he believed would lead him to a man he has been hunting since his father's death"