THE MAGICIANS HOUSE William, Mary and Alice spend their school holidays with their Uncle Jack and his girlfriend, Phoebe at the magical Golden House, where they encounter a magician from another time who gives them magical powers and sets thema very important task. . . BOOK 3- THE TUNNEL BEHIND THE WATERFALL It's summertime and the children are back at Golden House, enjoying the sun and relaxing on the banks of the lake, Golden Water.