Jessi and the Dance School Phantom

Naturally, Jessi is thrilled when she earns the lead in her dance school's latest ballet. But someone in Jessi's class wants her out of the show.
First Jessi's toe shoes are stolen. Then she gets all kinds of threatening messages!
What kind of ballerina would want to scare Jessi? The Baby-sitters don't know, but they're not going to let anyone get away with it for long!