New York Times and internationally bestselling author Jussi Adler-Olsen returns with the sixth book in his exhilarating Department Q series featuring Detective Carl Mrck and his enigmatic assistants Assad and RoseIn the middle of his usual hard-won morning nap in the basement of police headquarters Carl Mrck head of Department Q receives a call from a colleague working on the Danish island of Bornholm Carl is dismissive when he realizes that a new case is being foisted on him but a few hours later he receives some shocking news that leaves his headstrong assistant Rose more furious than usual Carl has no choice but to lead Department Q into the tragic cold case of a vivacious seventeen-year-old girl who vanished from school only to be found dead hanging high up in a tree The investigation will take them from the remote island of Bornholm to a strange sun worshipping cult where Carl Assad Rose and newcomer Gordon attempt to stop a string of new murders and a skilled manipulator who refuses to let anythingor anyoneget in the way.