When Nancy's parents win an all-expenses-paid vacation, Nancy and JoJo get to sleep over at their neighbor's home, Mrs. DeVine's. But JoJo is a little nervous to sleep at someone else's house—luckily, Nancy is an expert on sleepovers and can help prepare her little sister. The big night arrives, and JoJo and Nancy have a blast at Mrs. DeVine's. But when it's time for bed, it turns out Nancy wasn't as prepared as she thought. Good thing there is nothing better than a sister to make you feel better. Perfect for fans of the Eloise, Olivia, and other Fancy Nancy books. Ooh la la! Fancy Nancy is starring in her own fabulous TV show on Disney Junior. READ THE BOOKS THAT STARTED IT ALL! Fancy Nancy Fancy Nancy and the Posh Puppy Fancy Nancy: Bonjour, Butterfly Fancy Nancy: Splendiferous Christmas Fancy Nancy and the Fabulous Fashion Boutique Fancy Nancy and the Mermaid Ballet Fancy Nancy: Fanciest Doll in the Universe Fancy Nancy and the Wedding of the Century Fancy Nancy 10th Anniversary Edition Fancy Nancy: Saturday Night Sleepover Fancy Nancy: Oodles of Kittens