Great Aunt-Venture.Sofia, Amber and James plan to go to the carnival together, but their fun is interrupted by the arrival of Matilda, their aunt whom they call Tilly. According to the twins, Aunt Tilly is simply boring, always doing nothing but baking pies after "pinching [their] cheeks and patting [their] heads", as well as the constant asking of them to be her "little helpers", although they have always gotten out of it. Feeling a little bad for Aunt Tilly, Sofia decides to stay while the twins run off to the carnival. Sofia accompanies her to the mysterious Arabella orchard, where only the finest, rarest Arabella apples grow --- essential ingredients for her signature apple pie. The magical thing about the orchard is that it moves, constantly shifting from place to place. Following a Locus-Pocus magic map of Tilly's, they pass the Melodious Meadow, which astounds Sofia, and into the Sunflower Maze, leaving them terribly lost until, with the help of flying shoes, they manage to see over the maze and get out. With no way across the Gargantuan Gorge, they get help from a giant after pulling out a "thorn" in its foot. The two finally set foot into the Arabella orchard, but a wild wombeast steals the apples they had gathered just as the orchard moves on. When they find the wombeast, Sofia learns his name to be Wilbur, discovers he was simply hungry, and doesn't have a family. Sympathising with him, she invites him back for the royal family dinner, where she promises the apples will be served, much to Wilbur's delight. When James and Amber tell Sofia all about the circus, she tells them in turn about the fun adventure she had – one she would never forget.