In national bestselling author Victoria Thompson’s Gaslight mysteries, the residents of nineteenth-century New York City turn to midwife Sarah Brandt and Detective Sergeant Frank Malloy to protect them from the worst crimes. Now, the two must track down a criminal preying on innocent women …

Frank Malloy has never known any life other than that of a cop, but his newfound inheritance threatens his position on the force. While trying to keep both his relationship with Sarah and his fortune under wraps, he’s assigned to a new case—finding a missing young woman who had been responding to “lonely hearts” ads in the paper before she disappeared. Malloy fears the worst, knowing that the grifters who place such ads often do much more than simply abscond with their victims.

But as Sarah and Malloy delve deeper into a twisted plot targeting the city’s single women, it’s their partnership—both professional and private—that winds up in the greatest peril …