The startlingly powerful psychological thriller by international bestselling author Sebastian Fitzek.A missing girl. A desperate father. An unbelievable truth.Twelve-year-old Josy has an inexplicable illness. One day she goes to her doctor's surgery and disappears without trace.Josy's father Viktor withdraws to an isolated island in order to deal with the tragedy. It's there he is visited four years later by a beautiful stranger.Anna Glass is a novelist who suffers from an unusual form of schizophrenia: all the characters she creates for her books become real to her. Her latest work features a young girl with an unknown illness who has disappeared without trace...Could her delusions really describe Josy's last days? Reluctantly, psychiatrist Viktor agrees to become Anna's therapist in a final attempt to uncover the truth. As the past is dragged back into the light, the sessions and their consequences become ever more terrifying.'Fitzek's thrillers are breathtaking, full of wild twists.' Harlan Coben'Fitzek is without question one of the crime world's most evocative storytellers' Karin Slaughter'A true master of his craft.' Chris Carter