What's better than a sleepover? A sleepover with makeovers! Sherry and her friends are having an awesome time with eye shadow, glitter, and more hair products than a salon. But when the girls wake up the next morning with serious skin issues, Sherry is freaked. Someone tampered with her makeup! <br>It turns out that the mall's cosmetics kiosk&mdash;where Junie's cousin Amber works&mdash;has had lots of products returned by upset customers. Sherry's determined to get to the bottom of things. After all, she's become a bit of a crime-solving celebrity (well, at least in the spirit world). Ghost academies around the world are impressed by Sherry and her ghost mom's skills.<br>And if anyone can solve a mystery involving mascara, it's Sherry Holmes Baldwin.