Another twisty-turny mystery that goes all over London and surrounding areas before Sebastian St. Cyr ties up all the loose ends. This time he's helping Miss Hero Jarvis, who is in the wrong place at the wrong time. She is doing research at Magdelena House, a refuge for prostitutes trying to get out of the profession. Rose, a rather aristocratic young lady of the evening, suddenly hears intruders and immediately says they're coming for her. Hero tries to help her escape but the girl is shot. Hero manages to get home and contact Viscount Devlin. When he investigates, he discovers that the official story is that the women died when the house caught fire (a misplaced candle, of course) So no one is following up on the deaths. Of course, Devlin and Hero will not leave it at that.
C. S. Harris does a masterful job of leading us through the maze of Regency society - the importance of social standing and the secrets that must be kept to maintain the family reputation. Each time they uncover a clue, another layer gets peeled back revealing something that someone wants to keep hidden. There are hints along the way that help the reader to figure out some of the plot. the big reveal is always surprising and logical at the same time.
Devlin remains a great tragic hero, more so since he lost his love, Kat. He's been sinking into booze and debauchery until this mystery pulls him out of his despair and opens a new possibility for his life. On to the next book!