Secret of the Carousel Horse

What is the secret of the carousel horse?
It's important enough for someone to justify the kidnapping of Casey in exchange for the mysterious horse. A thief, Casey, Peter, and the others find themselves lost in another world, trying to track down the treasure that will save their lives. Will they find the treasure? What is this treasure that is worth a life? Can they ever get back to Cornwall? Will Jackie Lee find Casey before it's too late? Narrated by Jackie Lee the GSD