Final Heir (Jane Yellowrock, Bk. 15)

Jane Yellowrock is the queen of the vampires, and that makes her a target as she fights to maintain control and keep peace in the city of New Orleans. She has enemies at every turn, because vampires live forever, and they keep their grudges alive with them. That includes the Heir, the vampire sire of the Pellissier bloodline, which gave rise to Leo Pellissier himself--Jane's old boss and the former master of the city.

With the Heir and all the forces of darkness he can muster arrayed against her, Jane will need all the help she can get. She'll find it in her city, her friends, her found family, and, of course, the Beast inside of her.