It's Katie's fourth time in Questria and she's up to the task of another ballet adventure. This time she's battling the evil King Rat from the ballet, the Nutcracker. He has lost his famous temper and has cast a spell on the story of Coppelia. Now Coppelia, a doll made by Cuppus, the toymaker, is a real girl. But Bella, the Mayor's daughter, is a doll in Coppelia's place And the Wicked Fairy, from the ballet Sleeping Beauty, isn't helping by making the Questria summer turn into a cold and hard winter. But that isn't all. About halfway through her journey, Lila gives into the bad side. How can Katie convince her to come back and join her and make things right?