Undine lost her wilful ways on her wedding-day.
Her foster-parents watched her, bewildered, so gentle was she, so thoughtful. She, who had but seldom flung her arms around them, embraced them now, and thanked them with tears in her eyes for all their care. Nor would she let them go, until she saw that the old woman wished to prepare breakfast.
Then she herself flew to the hearth, and making her foster-mother rest, she swept and dusted, and prepared the meal. It was strange that she had never thought of doing this before.
And those who dwelt with her, as they watched her grow so gracious, so gentle, learned to love her even more than in the days when she had been wild and wilful.
One evening Undine, with Huldbrand by her side, wandered along the bank of the forest stream.
The knight marvelled that the waters had suddenly grown peaceful, and that now again they were gliding quietly along their usual course.
'To-morrow,' said his fair wife sorrowfully, 'to-morrow you can ride forth where you will.'
'But,' said Huldbrand, 'you know well that if I go I will not leave you behind.'
'I do not think you will leave me, Huldbrand. Yet carry me across to yonder little island, for there I will tell to you the story of the maiden you have made your wife. It may be that when you have heard it, you will ride away alone into the wide world.'
Then silently the knight carried her, as she wished, across the stream to the tiny island, and laid her down on the green grass. It was on this very spot that he had found her on the night of the terrible storm.
'Sit there, where I can look into your eyes as I tell my tale,' said his wife, 'for as I look I shall be able to see what you are thinking, nor will there be any need for you to tell me.'
'In the world,' said Undine, 'there are many beings whom mortals seldom see, for should these beings hear a mortal drawing near, they quickly hide themselves. These beings of whom I tell you are spirits that dwell in fire, earth, air and water.
'Those who dwell in the flames are called salamanders, nor do these spirits wish for any other home, as they play merrily and fearlessly among the sparkling fires.
'Deep under the earth live the gnomes, rough and fearsome spirits they, full of malice too, should any mortal cross their path.
'In lofty forests dwell more fair and joyous spirits, guarding each some well-loved spot from a mortal's heavy tread.