When 11-year-old Galavant convinces his mother to buy a jumbo Elf-on-the-Shelf doll, little sister Pumpkin knows trouble is coming. Fae lore warns that mischievous magical beings should never be invited into your home-but will anyone listen? As the holiday season unfolds, the elf's pranks turn sinister: cereal spills, shattered ornaments, and terrifying wooden grins. With Grandma Kiki's help, Pumpkin and Galavant must gather courage, capture proof of the elf's magic, and return it to its mysterious seller before the craft fair closes... or risk a Christmas they'll never forget. Perfect for kids who love Goosebumps-style chills, holiday mischief, and a twist of fae magic.