After learning that her nemesis is a dark prince who lives in a lost realm called Shadow Town, Sally embarks on another cross-realms quest to find a solution, one that will connect her to new locales like Chance Town and the Hinterlands Maze. With the prince tracking her at every turn, seemingly bent on revenge, Sally will need to fight with every fiber of her being to prevent Halloween Town from utter destruction. But what secrets is the prince hiding—and could the truth undo everything?