Why Mermaids Sing (Sebastian St. Cyr Mysteries‪)‬

Murder has jarred London's elite. The sons of prominent families have been found at dawn in public places, partially butchered, with strange objects stuffed in their mouths. Once again, the local magistrate turns to Sebastian St. Cyr, Viscount Devlin, for help. Moving from the gritty world of London's docks to the drawing rooms of Mayfair, Sebastian confronts his most puzzling-and disturbing-case yet.