When seventeen-year-old Paige dies in a freak fall from the roof during Physics class, her spirit is bound to the grounds of her high school. At least she has company: her fellow ghosts Evan and Brooke, who also died there. But when Paige hears the rumor that her death wasn't an accident--that she supposedly jumped on purpose--she can't bear it. Then Paige discovers something amazing. She can possess living people when they think of her, and she can make them do almost anything. Maybe, just maybe, she can get to the most popular girl in school and stop the rumors once and for all.