My name is Cassandra. I am the daughter of a great human magician and a vampire princess. I'm also a "fault of nature." Neither a magician nor a vampire. After the transformation, the gifted one loses his power and acquires blood magic, which can only be wielded by vampires who cannot control the elements. I own both. Despite my parents' situation, my life has never been simple or easy. And with admission to the Academy of Six Worlds, the number of my problems increases exponentially. Breaks in the Border are happening more and more often, there are more creatures of the Abyss, and a real hunt has begun for the guardians. On top of everything else, an old prophecy has surfaced and a cult of crazy fanatics is stalking my soul.