Bernard the robot loses his bottom on the park swing, and sets off to find it. Every time he gets close, it disappears again! Bird was using it as a nest, but it was too heavy; Bear used it in his drum kit, but it was too tinny; the squirrels built sandcastles with it - and now it looks as if they're sailing away in it. Will Bernard ever get his bottom back?
Available at Haddington and Headquarters.