In the heart of the Appalachian Wilderness one hundred years in the future, the resourceful MacKennon family and their eclectic allies survive in Ghost Horse Hollow, a fairy-protected Mountain Horse farm. Sixteen-year-old Panther MacKennon bravely completes her apprenticeship with her demanding tutor Sir Finnias Glowgold in the unexplained absence of the Starlight Fairy Queen, but something unwholesome is stirring in the wild woods that will change...