Rainbow Surprise: A Quix Book - Helen Perelman - Bog

"Mini and her cousins Frosting and Cupcake are having their first sleepover at their grandparents' royal Sugar Valley castle. They are all going to a fancy ball honoring their grandparents and are excited about giving a perfect gift--until the gift goes missing! This is the first visit to their grandparents' castle without their parents. What other surprises await them?"--