A mysterious stranger in outlandish Edwardian garb defaces a Pre-Raphaelite painting in the National Gallery. Then a guest at the exclusive Savoy Hotel is fatally bitten by a marshland snake. Over the next several days, an outbreak of increasingly bizarre crimes will hit London—and, fittingly, come to the attention of the Peculiar Crimes Unit. Art vandalism, an exploding suspect, pornography, rat poison, Gilbert and Sullivan musicals, secret societies…and not a single suspect in sight. The killer they’re chasing has a dark history, a habit of staying hidden, and time itself on his side. Detectives May and Bryant are racing the clock and this time the bell may be tolling for them.