The third title in Barrie Summy's tween mystery series!

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!

It turns out that the mall's cosmetics kiosk—where Junie's cousin Amber works—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.

And if anyone can solve a mystery involving mascara, it's Sherry Holmes Baldwin.