No matter what Elizabeth does, she can't stop her best friend, Amy Sutton, from trying out for the Unicorn Club's cheering squad. Elizabeth is sure that the Unicorns are going to steal Amy away from her. Then Elizabeth learns that Jessica and the rest of the Unicorns don't even want Amy. In fact they'll do anything to keep her off the squad! What should Elizabeth do? Can she stand by and watch Amy get hurt? But if she fights at Amy's side against the Unicorns, she'll be taking a stand against her own twin sister!