Emma is used to things going her way. Her father is headmaster of her prestigious boarding school, her friends take her advice as gospel, and she's convinced that a relationship with her long-time crush is on the horizon.

As it turns out, Emma hasn't seen anything yet. When she finds an old book in an abandoned library, things really start going Emma's way: anything she writes in the book comes true.

But the power of the book is not without consequences, and Emma soon realizes that she isn't the only one who knows about it. Someone is determined to take it from her—and they'll stop at nothing to succeed.

A new boy in school—the arrogant, aloof, and irritatingly handsome Darcy de Winter—becomes Emma's unlikely ally as secrets are revealed and danger creeps ever closer.