The children find their 'hound' with a broken leg. The boy, Jim, is taken to Three Chimneys. When Jim's grandfather comes to visit - it is their Old Gentleman! When the children wave at the passing 9.15, the whole train waves back as if in celebration. At the station, Bobbie is greeted by an overjoyed Perks. A train from London halts and, as the steam clears, Bobbie sees a tall figure on the platform.