Fancy Nancy is back in this magical new story about a very exciting sleepover with a very special little sister... Fancy Nancy is back in this magical new story about a very exciting sleepover with a very special little sister... Nancy and JoJo are having a sleepover - and it's JoJo's first one ever! JoJo's a little nervous about sleeping away from home, but luckily big sister extraordinaire Nancy is there to put her mind at ease. Nancy is an expert at sleepovers. But when bedtime rolls around, it turns out it's Nancy who might not be as prepared as she thought... A new story in this bestselling series, about the love and comfort sisters give each other - little or big!