Book excerpt: John Constantine is back-and, unfortunately for Tim Hunter, he’s convinced the only way the human race can survive is if Tim is taken off the board. But from where Tim’s standing, he’s the only one with the power to save us all. Who’s right? Who’s wrong? And is there room in London for the both of them? That’s just the start of Tim’s troubles-because his evil doppelgänger has been unleashed on the world! Collects Books of Magic #14-23.