The Burning Girl (The Books of Magic, Book 6)

Tim Hunter, the young magician who could become the worlds most powerful mystic, has left his London home behind. First stop: the southwest, where Tim runs into a Native American snake-spirit who teaches him about power. And in the realm of Faerie, the death of Molly OReilly, Tims ex-girlfriend, has been decreed by Queen Titania, resulting in chaos and terror across the land. Suggested for mature readers.