This is the seventh book in the Anita Blake series. In the beginning of this novel, Anita learns that her killing Gabriel in the last book has left the Wereleopards without a leader, and they have become anyone's meat, basically, free for anyone who cares to use or abuse them. So in trying to help them out, she becomes their Alpha, their leader. At the same time, she is still considered Lupa for the Werewolves, cause Richard still has not chosen another mate, so she also protects / commands them.
While all this is happening, the Vampire Counsel has come to town, looking for revenge for the killing of one of it's members... Mr Oliver (Circus of the Damned). Anita must do her best to protect or seek revenge for her Wereleopards and her Werewolves, while trying to survive the encounter with the Council, and not getting any of their party killed.