A murderer is hiding beneath the city of light—and Lou Thorne is running out of time. When a celebrated feminist art historian is found dead in her Paris bathtub, authorities call it a shocking suicide. But Lou Thorne knows better. Her compass—the dark gift that guides her to killers—has been pulling her relentlessly back to Paris, and it won't let go. Then an Algerian graduate student vanishes. Lou finds what's left of her in the catacombs. As the deaths begin to stack up, Lou realizes something is wrong. Her compass won't lock onto the killer. The trail fractures. The answers refuse to surface. And while more women disappear across the city, Lou is forced to confront a terrifying possibility: the truth may be buried deeper than any body. Caught between an elusive predator, a city built on secrets, and the dangerous loyalties surrounding the man she loves, Lou must hunt without her greatest advantage—before the killer strikes again. Dark, atmospheric, and brutally intimate, What Comes Around is the sixth installment in the Shadows in the Water series—where justice isn't clean, monsters wear human faces, and survival always comes at a cost.