"Once upon a time there were three little goblins. Their names were Red-Cap, Blue-Cap and Yellow-Cap, and they lived in a mountain. The goblins had a great friend-a green frog whose name was Rowley. Rowley came every year to see the little goblins, and told them stories about the Big World where he lived. The goblins had never seen the Big World, and often asked their father to let them go with Rowley, but he always said, "Not yet, my sons. ""