R. L. Stine developed the characters and was the head writer of the show. It originally aired on Nickelodeon's Nick Jr. block from September 4, 1989, to November 10, 1991. The show featured various puppet characters who live in a giant's wind-up music box. Other characters include Magellan the dragon, twin moat dwellers Bogge and Quagmire, Batly the bat, and Mr. Knack the handyman.