It begins with a nursery rhyme. Nineteen minutes later you die... The sixth gripping thriller in Lars Kepler's bestselling series featuring Joona Linna. Perfect for fans of Stieg Larsson and Jo Nesbo. There's a face at the window.A masked stranger stands in the shadow of a garden, watching his first victim through the window. He will kill him slowly – play him a nursery rhyme – make him pay. A killer in your house.The police offer ex-Detective Joona Linna a chance to clear his name: help Superintendent Saga Bauer track down the vicious killer terrorising Stockholm, before he strikes again. Only one man can stop him.Now Joona stands between a disturbed predator and its prey. He must catch a killer who hunts in the shadows and who is dangerously close to losing control...