Of Masques and Martyrs: you've read game of thrones, now read this

For the Shadows, nothing can ever be the same again. Their existence revealed to the world in Of Saints and Shadows, the truth of their divided heritage revealed to themselves in Angel Souls and Devil Hearts, they must now fight the hardest battle of all – against others of their own kind. The fragile alliance of human and vampire was shattered forever by Hannibal, among the most ancient of Shadows, who turned on them both in their hour of greatest need. Driven by blood, he thirsts for dominion, and humankind to him will always be prey. For those Shadows who walk a different path there is only one choice to be made. Hannibal must be destroyed before he destroys them all. But his followers are many, and those who oppose him are few...