The Vampire Princess

The Vampire Princess is the first book in the Royal Vampire Chronicals, and the only one with a Vampire for a protagisist, in Werewolf Princess, the main character is a Werewolf, and in The Tribrid Girl, the main character is a Vampire-Werewolf-Witch Hybrid. The upcoming installment, King of the Wolves, will follow a Werewolf-Witch Hybrid.