A turn-of-the-century Manhattan heiress and her ex-love team up to catch a killer in this romantic suspense mystery by a New York Times–bestselling author. "A fun and entertaining novel that will leave the reader eagerly waiting for the next installment to see how the characters' relationships progress." —Historical Novel Society Irrepressible heiress and intrepid sleuth Francesca Cahill moves from her own glittering world of Fifth Avenue to the teeming underbelly of society, a place of pride, passions . . . and sometimes deadly perversion. Despite the misgivings of her fiancé, Calder Hart, Francesca cannot turn away from a threat that is terrorizing the tenement neighborhood of Lower Manhattan. A madman has attacked three women, but while the first two victims survived, the third is found dead. All the victims are impoverished but beautiful Irishwomen, and Francesca fears that her dear friends Maggie Kennedy and Gwen O'Neil could be next. Soon she is working with her former love, police commissioner Rick Bragg—Calder's half-brother and worst rival. But even as Calder's jealous passions leave his relationship with Francesca teetering on the brink, Francesca is frantically on the killer's trail, certain the Slasher will strike again, afraid she will be too late . . .