Idea prompt 78:

 The elder woman:

 A group gets kidnapped in the middle of the night. They end up waking up under the illusion spell of being children (only by looking in the mirror do they see their true selves and remember). 

 An old woman comes into the room and calls them her grandchildren, and after she leaves, the group needs to find a way out. Once they get out of the room they were locked into and find some transforming candies, the group must traverse a giant land of canyons, oceans, and cliffs just to get home and reverse the illusion up upon them before it becomes reality.