Fiona and Frieda love fairy tales. Every day at recess, they act out their favorite stories. Then on the fifty-seventh day of third grade, something amazing happens. Magic sparkles fill the air and the girls discover they have magic rhyming powers. All of a sudden, Cinderella's sitting at the bottom of the curly blue slide and she's crying harder than a kindergartener on the first day of school. Can Fiona and Frieda help Cinderella find her fairy godmother before her mean stepsisters discover her? Will they help Cinderella meet the prince--or will they ruin the fairy tale forever?