"Eat to live, not live to eat, be shadows of the night, be one with the darkness, and never let in the light." There exists the Code the Vampire Nation adheres to, but in the midst of such order and chaos remain the judge, jury and executioners of the undead in the world: the Berith Lochem. Ancient warriors of the Three Trinity Lines entrusted with the authority to ensure all revenants in the shadows remain where they need to be. Still, Alexandra Glade, vengeful vampire hunter of a faction operating out of London, England, faces her own demons as a new mission has been thrust upon her like a dagger straight out of Hell. She faces an enemy seeking not to enslave mankind, but to start a wicked war of covens and councils, the undead and the unsullied, and a fate for humanity that is worse than slavery as food for the immortals: but annihilation as casualties. Mankind's extinction as we know it. This ancient book holds the key to all of that. Where it all began. The account of the veritable Father of the Damned. The account known as the "Cain Letters." Alexandra dare not open the pages of the Letters, or else realize that she must make a choice. A choice she never will want to make again.