The New York Times and # 1 international bestselling author Jussi Adler-Olsen returns with another shocking cold case in his exhilarating Department Q series. Detective Carl Morck holds in his hands a bottle that contains old and decayed message, written in blood. It is a cry for help from two young brothers, tied and bound in a boathouse by the sea. Could it be real? Who are these boys, and why weren't they reported missing? Could they possibly still...