Proper Scoundrels by Allie Therin

London, 1925. Sebastian de Leon is adjusting to life after three years spent enthralled by blood magic. The atrocities he committed under its control still weigh heavily on his conscience, but when he’s asked to investigate a series of mysterious murders, it feels like an opportunity to make amends. Until he realizes the killer’s next likely target is a man who witnessed Sebastian at his worst—the Viscount Fine. Lord Fine—known as Wesley to his friends, if he had any—is haunted by ghosts of his own after serving as a British army captain during the Great War. Jaded and untrusting, he’s tempted to turn Sebastian… Read more.