Amy Chandler knows she's different. In fact, she's perfect - a perfect twelve-year-old girl. Overnight, she can see and hear things from awesome distances; she can tumble, twist, and turn like a top gymnast; and she knows the answer to every question her teachers ask.
But Amy doesn't have the answer to the mystery of her past. All she knows is that her recurring nightmare seems very real. That her crescent-shaped birthmark wasn't there yesterday. That a stranger is taking photos of her. That her mother is acting weird. That someone is sending her anonymous warnings to keep her talents a secret. Slowly Amy is piecing together her identity, but she'd better hurry.