Chapter I: Vigilante

In book 6 of this 12-book Supernatural series, the Winchesters are faced with one of their worst nightmares: being faced with the task of finding - and possibly killing - the girl they've both come to care for. Ellie, now known as the vigilante called "El," is more than just a case of soullessness. Something far darker lurks beneath the surface: something that will force the Winchesters to take a look at their own hearts.