Rafael by Laurell K. Hamilton — book slip

Rafael, king of the wererats, faces a deadly challenge to his rule. With Anita Blake, a powerful ally with deep ties to the vampire community, by his side, he must confront a younger, hungrier challenger who threatens to unravel the delicate balance of power between the wererats and vampires. As tensions rise, Rafael must delve into the magical heart of his people to find the strength to protect his crown and his people, or risk losing everything.

For fans of urban fantasy with a dark edge and complex supernatural politics.