Part of your nightmare

"Eleven-year-old Shelly Anderson just wants to be popular. Her parents have split, and she had to start over at a new school with different classes, a brand-new swim team, and an unfamiliar social scene. So what if she just wants the cool kids to like her? Is that really too much to ask? So when Shelly finds a mysterious nautilus shell that summons the infamous sea witch Ursula, she jumps at the chance to make a deal that will solidify her as one of the coolest girls in school"--Back cover.