Over three years ago, a civil servant vanished after returning home from a work trip to Africa. Missing, presumed dead, the man's family still want answers. It is one of the many unsolved crimes facing Department Q, Denmark's specialist cold case unit led by Detective Inspector Carl Mørck. But what Carl doesn't know is that the key to the investigation can be found right here in Copenhagen . . . Fifteen-year-old Marco Jameson survives on the run by sleeping rough and hiding in the shadows. He has seen more than most people do in a lifetime. But what does he know that makes him so afraid? And can the police find him before whoever he is running from? 'Gripping storytelling.' Guardian 'Engrossing.' Sunday Express 'As impressive as it is unnerving.' Independent