A war is brewing and the first battle has already been waged. After rescuing her half brother from supernatural medical testing, Savannah Levine--a young witch of remarkable power and a dangerous pedigree--is battered, but still standing. The Supernatural Liberation Movement took him hostage, and they have a maniacal plan to expose the supernatural world to the unknowing.

Savannah is fighting to save her world as witches, werewolves, necromancers, vampires, half-demons, and all the forces of good and evil--including the genetically modified werewolves known as hell hounds--enter the fray. Uniting Savannah with Adam, Elena, Clay, Paige, Lucas, Jaime, Hope, and other denizens of the Otherworld, Thirteen is a thrilling conclusion to this blockbuster series.