Alanna Knight
Murders Most Foul

1861. When the body of an unknown woman is found in an Edinburgh close, Detective Constable Faro assumes the killing is a random act of violence – until he finds a playing card, the nine of diamonds, underneath her corpse. His superiors scoff at his suspicions of a serial killer, but days later a man is attacked in the street, and left badly bruised and battered with the nine of diamonds in his pocket.