Who says princesses have to be perfect? When Lady Dotty, Princess Rosie's favorite cousin, announces her wedding, she asks Rosie to be her bridesmaid! Suddenly, there's so much to do to prepare. But when gifts start disappearing and the cake is mysteriously destroyed, Rosie suspects someone's trying to sabotage the royal wedding. Can Rosie figure out what's going on and save Dotty's special day? --