The Infernal Riddle of Thomas Peach

A liberal and free thinker, Mr Peach is a member of a society of learned men in Bristol, one of whom is guardian of a young woman believed to be possessed by a demon. Mr Peach disagrees with this opinion, but suspicion only grows when the woman in question - whose mouth and lips are stained inexplicably black - escapes from her patron and causes panic in the countryside.

Soon she is living under Mr Peach's protection. But he himself is in danger; someone - or something - has followed him from his former life in London. Thomas Peach has enumerable secrets - and one of them might just prove deadly.