'The Sanatorium will keep you checking over your shoulder. This spine-tingling, atmospheric thriller has it all: an eerie Alpine setting, sharp prose, and twists you'll never see coming. A must-read.' Richard Osman'An eerie, atmospheric novel that had me completely on the edge of my seat.' Reese WitherspoonA beautiful, eerie hotel in the Swiss Alps, recently converted from an abandoned sanatorium, is the last place Detective Elin Warner wants to be.

But her estranged brother has invited her there for his engagement party, and she feels she has no choice...