The vessel had not gone very far when she ran upon a rock, and stuck so fast in a cleft that the strength of the whole crew could not get her off again. To make matters worse, the wind was rising too, and it was quite plain that in a few hours the ship would be dashed to pieces and everybody would be drowned, when suddenly the form of a mermaid was seen dancing on the waves which threatened every moment to overwhelm them.
‘There is only one way to free yourselves,’ she said to the king, bobbing up and down in the water as she spoke, ‘and that is to give me your solemn word that you will deliver to me the first child that is born to you.’
The king hesitated at this proposal. He hoped that some day he might have children in his home, and the thought that he must yield up the heir to his crown was very bitter to him; but just then a huge wave broke with great force on the ship’s side, and his men fell on their knees and entreated him to save them.
So he promised, and this time a wave lifted the vessel clean off the rocks, and she was in the open sea once more.
The affairs of the islands took longer to settle than the king had expected, and some months passed away before he returned to his palace. In his absence a son had been born to him, and so great was his joy that he quite forgot the mermaid and the price he had paid for the safety of his ship. But as the years went on, and the baby grew into a fine big boy, the remembrance of it came back, and one day he told the queen the whole story. From that moment the happiness of both their lives was ruined. Every night they went to bed wondering if they should find his room empty in the morning, and every day they kept him by their sides, expecting him to be snatched away before their very eyes.
At last the king felt that this state of things could not continue, and he said to his wife:
‘After all, the most foolish thing in the world one can do is to keep the boy here in exactly the place in which the mermaid will seek him. Let us give him food and send him on his travels, and perhaps, if the mermaid ever does come to seek him, she may be content with some other child.’ And the queen agreed that his plan seemed the wisest.
So the boy was called, and his father told him the story of the voyage, as he had told his mother before him. The prince listened eagerly, and was delighted to think that he was to go away all by himself to see the world, and was not in the least frightened; for though he was now sixteen, he had scarcely been allowed to walk alone beyond the palace gardens. He began busily to make his preparations, and took off his smart velvet coat, putting on instead one of green cloth, while he refused a beautiful bag which the queen offered him to hold his food, and slung a leather knapsack over his shoulders instead, just as he had seen other travellers do. Then he bade farewell to his parents and went his way.