when jerry jimmy and cathy discover a tunnel that leads to a castle they pretend that it is enchanted. but when they discover a sleeping princess at the centre of a maze, astonishing things begin to happen. amongst of a maze, astonishing things begin to happen. amongst a horde of jewels they discover a ring that grants wishes. but wishes granted are not always wishes wanted, so the children find themselves grappling with invisibilty, dinosaurs, a ghost and the fearsome ugli-wuglies before all is resolved.