Who's Afraid of the Ghost Train?

Robert has a very big imagination. So big that he always thinks there are little men under his bed, bears hiding in the wardrobe or sharks lurking in the bath. So when a funfair arrives in town and Robert and his friends go on the ghost train, they're sure he'll get abig fright. But they don't know Grandpa Jim has let Robert into a big secret and now Robert is the last one to be afraid...