All Lo Campbell wants is to be a normal teenager - to go to one high school, live in one place, and have one real friend. Instead, she travels the country with her mother, chasing the unknown, the supernatural waiting out there... Until one day, the supernatural chases back.Determined to rescue her mom from whatever otherworldly being took her, Lo is going to need a Tracker - and lucky for her, she finds one. Shaw is strong, good-looking, possibly available, and utterly infuriating. Sure, he may have secrets, and his help costs more than a brand-new car, but she'll have to deal with him if she wants to find her mother - and get her home alive.