Alexis Davenport wants to go home. She hates her new school, her mother for moving her away from her friends, and her father for walking out. To make matters worse, Alex is haunted by images of strange girls reflected in her mirror. It's bad enough juggling homework, a relentless bully, boys, and a deadbeat dad; now, she must save the world from an evil presence hell-bent on changing the past – and our futures. Who knew her A+ in history was going to be this important?