WHILE OTHER KIDS are out trick-or-treating, eighth-grade magician Harry Moon is flying on a magic cloak named Impenetrable. Harry and Rabbit speed past severed hands, boiling cauldrons, and graveyard witching rituals on their way to unravel a decade-old curse at the annual Sleepy Hollow Halloween Bonfire. With "do no evil" his motto, Harry goes to battle with the sinister Mayor Kligore and Oink. Halloween night becomes the fight and nightmare of Harry Moon's young life.