Eureeka's Castle is an American children's puppet television series created by Debby Beece and Judy Katschke. 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 program featured various puppet characters who live in a giant's wind-up music box. The show was a joint development by Nickelodeon, animators Kit Laybourne and Eli Noyes of Noyes & Laybourne Enterprises, and the puppeteers at 3/Design Studio.