The Principal's Underwear Is Missing

When you're a sixth-grade nobody, the last person you want to accidentally zonk with a volleyball is Sloan "Selfie" St. Clair--the eighth-grade glamour queen of the school. But that's what happens to Becca Birnbaum, and it only gets worse when she tries to do Selfie a favor. She grabs the wrong shopping bag from the principal's office -- one containing a very personal item. and even that might not be so bad, if only Selfie didn't immediately lose it. If they don't get it back ASAP, they're toast