You won't want to leave...until you can't. Half hidden by forest and overshadowed by threatening peaks, Le Sommet has always been a sinister place. Long plagued by troubling rumors, the former abandoned sanatorium has since been renovated into a five-star minimalist hotel. An imposing, isolated getaway spot high up in the Swiss Alps is the last place Elin Warner wants to be. But Elin's taken time off from her job as a detective, so when her estranged brother, Isaac, and his fiancée, Laure, invite her to celebrate their engagement at the hotel, Elin really has no reason not to accept. Arriving in the midst of a threatening storm, Elin immediately feels on edge—there's something about the hotel that makes her nervous. And when they wake the following morning to discover Laure is missing, Elin must trust her instincts if they hope to find her. With the storm closing off all access to the hotel, the longer Laure stays missing, the more the remaining guests start to panic. Elin is under pressure to find Laure, but no one has realized yet that another woman has gone missing. And she's the only one who could have warned them just how much danger they are all in...

From the New York Times bestselling author of The Sanatorium, a Reese’s Book Club Pick, detective Elin Warner’s second outing, as she uncovers the truth behind the suspicious deaths on a stunning island getaway. Most are here to recharge and refresh. But someone's here for revenge. . . An eco-wellness retreat has opened on an island off the English coast, promising rest and relaxation—but the island itself, known locally as Reaper’s Rock, has a dark past. Once the playground of a serial killer, it’s rumored to be cursed. Detective Elin Warner is called to the retreat when a young woman’s body is found on the rocks below the yoga pavilion in what seems to be a tragic fall. But the victim wasn’t a guest—she wasn’t meant to be on the island at all. When a guest drowns in a diving incident the following day, Elin starts to suspect that there’s nothing accidental about these deaths. But why would someone target the guests, and who else is in danger? Elin must find the killer—before the island’s history starts to repeat itself . . .

A perpetual drifter, Kier Templer lives her life on the road. Dubbed “the monster’s daughter” after her mother’s infamous crime, Kier has left her hometown and twin behind. Kier is haunted by the past, but one thing has always bound her to her brother, the distinctive maps she designs of the places she’s explored. When Kier abruptly goes off\-grid without sending him her latest, Penn knows something is seriously wrong. Elin Warner is on vacation with her brother Isaac in a rugged national park in Portugal—the last place Kier was seen. It’s supposed to be a time for the siblings to reconnect, but when Elin discovers Kier’s disturbing final map, it seems the park—especially the inhabitants of a camp buried deep in the forest—holds clues to what happened to Kier, and a lot more besides. After a sinister discovery, Elin is shocked to learn Kier's disappearance is more personal to her than she’d ever imagined. And as she seeks the truth, Elin soon finds the wilderness hides something far darker than shifting shadows…