Quinn Littleton was a mean girl--a skinny blonde social terrorist in stilettos. She was everything Emma MacLaren hated. Until she died.

A proud geek girl, Emma loves her quiet life on the outskirts, playing video games and staying off the radar. When her nightmare of a new stepsister moves into the bedroom next door, her world is turned upside down. Quinn is a queen bee with a nasty streak who destroys anyone who gets in her way. Teachers, football players, her fellow cheerleaders--no one is safe.

Emma wants nothing more than to get this girl out of her life,...