The Sanatorium A Novel (Detective Elin Warner Series, Book 1) By Sarah Pearse

In "The Sanatorium," a gripping thriller set in the Swiss Alps, Elin Warner reluctantly agrees to celebrate her brother's engagement at Le Sommet, a renovated sanatorium turned luxury hotel. Despite its stunning location, the hotel exudes an ominous atmosphere, and Elin's unease only intensifies when her brother's fiancée, Laure, disappears during a storm.

Trapped by the weather and cut off from help, Elin must navigate the hotel's dark history and the growing panic among the guests as they realize they are not alone in their peril. As Elin races to find Laure, she uncovers chilling secrets and realizes that another woman has vanished without a trace.

With time running out and danger lurking in every shadow, Elin must rely on her instincts and detective skills to unravel the mysteries of Le Sommet before it's too late. "The Sanatorium" delivers pulse-pounding suspense and atmospheric tension as Elin races against the clock to save the missing women and uncover the truth hidden within the hotel's walls.