Jessica and Elizabeth have always been inseparable twins, but starting middle school brings about a whole new set of rules! Elizabeth's best friend, Amy, can't wait to try out for the Unicorn Club's cheer squad. Elizabeth is worried. What if the Unicorns steal Amy away from her? Then Elizabeth hears a horrible rumour: Jessica and the rest of the Unicorns don't even want Amy. In fact, they'll do anything to keep her off the squad!