Humans believe they are in control of the world. They always have, but they have never been able to see the real powers at work. Vampires. Werewolves. Demons. Angels. The undercover world is ruled in two halves -- by the powerful king of vampires, the Blood King, Talbot Doubek, and by his reluctant, benevolent twin sister, the Sun Queen, Jael Doubek. For years, Jael and Talbot have been at odds with each other, and while they race to find the Apex, a vampire capable of killing other vampires, something much darker works to overthrow the both of them. Suddenly, the supernatural world must come face-to-face with the humans they had worked so hard to save -- and destroy.