Edinburgh,1890s. Rose McQuinn, daughter of the infamous Scottish detective Jeremy Faro, discovers a woman's body whilst walking on Arthur's Seat, high above the city. Her description of the gruesome discover is duly noted by a young constable at the scene, but when Rose returns she finds no trace of the body or the policeman, PC Smith. Turning to her friend DS Jack Macmerry, she finds his usual sympathetic manner distinctly lacking, and he is clearly...