Island of Surprises (The New Adventures of the Wishing-Chair)

Jack and Jessica find an old rocking chair in the shed of their new house. Suddenly, a pixie called Wishler appears and says he was trapped in the chair. He wants to go home, so soon they're off to the Island of Surprises on the magical wishing-chair. But there they meet a rather naughty wizard named Flick and they discover that surprises aren't always nice...