El libro mágico de la muerte

Magnus, after four years of traveling around the world decides to return to New York, reopen the Pandemonium and get on with his life, but it won't be that simple, someone is killing warlocks and he, along with the director of the New York Institute, Alec Ligthwood , must catch the killer, and the hardest thing for him, deal with all the mixed feelings that surface when he is with his ex.