With good mischeif on his mind, Harry decides that the town needs some relief from Kligore and the heaviness of Halloween. Playfully, Harry casts a spell over the town that gives every person in Sleepy Hollow a funny bone. The trouble is that everything in the town becomes a joke. After the laughter wears off, Harry is caught in a whirling cauldron of funny and fear as he searches for the magical antidote to break the spell on the not-so-funny, funny evil.