Identical twins Elizabeth and Jessica Wakefield are having a slumber party, and they know that it will be the best ever! They'll play games, eat pizza, and stay up late with their friends Lila, Amy, Eva, and Ellen.But soon after everyone arrives, things start to go wrong. Lila and Amy have brought identical toy unicorns. During a wild pillow fight, one of the unicorns is lost. Amy and Lila argue over the one that is left, and everybody takes sides. The twins don't know what to do. Will someone find the missing unicorn before their slumber party is ruined?
This book is part of the Sweet Valley Kids Books series and is book #22 in the series.