Mary Bubnik may be the klutziest ballerina at the Deerfield Academy of Dance, but she loves taking lessons with her best friends McGee, Zan, Gwen, and Rocky. But now that her mom is having money problems, Mary may have to quit ballet. What will the gang do without Mary Bubnik? Luckily, Zan reads about a contest with a cash prize that she's sure the girls can win. All they have to do is solve a real-live mystery in their town. The girls find one sooner than they planned. Someone's stealing things from the Academy's dressing room-and the Bunheads think Mary Bubnik is the thief! Prize or no prize-this is one mystery the gang has to solve!