C. S. Harris

London, 1812. The brutal slaughter of eight young prostitutes in a house of refuge near Covent Garden leaves only one survivor—and one witness: Hero Jarvis, reform-minded daughter of the Prince Regent’s cousin, Lord Jarvis. When the Machiavellian powerbroker quashes any official inquiry that might reveal his daughter’s unorthodox presence, Hero launches an investigation of her own and turns to Sebastian St. Cyr, Viscount Devlin, for help.

It's September 1811, and someone is killing the wealthy young sons of London's most prominent families. Partially butchered, with strange objects stuffed into their mouths, their bodies are found dumped in public places at dawn. When the grisly remains of Alfred, Lord Stanton's eldest son are discovered in the Old Palace Yard beside the House of Lords, the local magistrate turns to Sebastian St. Cyr, Viscount Devlin, for help.