The old grandmother had to tell her all she knew about ships and horses and men and animals.
It seemed to her particularly delightful that up there on earth the flowers smelt sweet (which they did not at the sea bottom), and that the woods were green and the fish which one saw among the branches could sing so loud and prettily that it was a joy to hear them. It was the little birds that the grandmother called fish, otherwise they could not have understood, for they had never seen a bird.
"When you're full fifteen years old," said the grandmother, "you shall have leave to come up out of the sea and sit on the rocks in the moonlight, and see the big ships that come sailing by; and forests and houses you shall see." During the year that was passing one of the sisters was fifteen years old; but the rest—why, each was a year younger than the next, and so the youngest had a clear five years to wait before she could come up from the sea bottom and see how things go with us.
But the first promised the next one to tell her what she had seen and had thought beautiful on the first day, for their grandmother didn't tell them enough: there were very many things they wanted to know about."