The fourth sister was not so venturesome. She stayed far out among the rough waves, which she said was a marvelous place. You could see all around you for miles and miles, and the heavens up above you were like a vast dome of glass. She had seen ships, but they were so far away that they looked like sea gulls. Playful dolphins had turned somersaults, and monstrous whales had spouted water through their nostrils so that it looked as if hundreds of fountains were playing all around them.