MORIARTY compiles the Anna Kronberg mysteries THE DEVIL'S GRIN, THE FALL, and THE JOURNEY. London 1889. A dead man is found floating in the city's waterworks. Fearing an epidemic, the Metropolitan Police call upon bacteriologist Dr Anton Kronberg to examine the body. All signs point toward cholera having killed the man...but for faint marks around wrists and ankles. Evidence for a crime is weak, and the police lose interest in the case...