A year or more might have passed in this manner, when doubts arose in the mind of Sleepy Tony, which became always more tormenting, and allowed him no peace. His food became distasteful to him and his sleep refreshed him not. He feared lest the mermaid might have some other lover in secret besides himself, in whose arms she passed every Thursday, while he was obliged to pass his time with the waiting-maids. He had long ago discovered the room in which the mermaid hid herself on Thursdays, but how did that help him? The door was always locked, and the windows were so closely hung with double curtains on the inside that there was not an opening left as large as a needle's eye through which a sunbeam, much less a human eye, could penetrate. But the more impossible it seemed to penetrate this secret, the more eager grew his longing to get to the very bottom of it. Although he never breathed a word of the weight upon his mind to the mermaid, she could see from his altered manner that all was not as it should be. Again and again she implored him with tears in her eyes not to torment both himself and her with evil thoughts. "I am free from every fault against you," she declared, "and I have no secret love nor any other sin against you on my conscience. But your false suspicion makes us both miserable, and will destroy the peace of our hearts. I would gladly give up every moment of my life to you if you wished it, but I cannot allow you to come near me on my fast-days. It cannot be, for it would put an end to our love and happiness for ever. We are able to live quietly and happily together for six days in the week, and how should the separation of one day be so heavy that you cannot bear it?"
She talked in this sensible way for six days, but when the following Thursday came, and the mermaid did not show herself, Sleepy Tony lost his wits, and behaved as if he was half-mad. He knew no peace, and at last one Thursday he refused to have any one with him. He ordered the waiting-maids to bring him his food and drink, and then to leave him directly, so that he remained alone like a spectre.
This great alteration in his conduct astonished everybody, and when the mermaid heard of the matter, she almost wept her eyes out of her head, though she only gave way to her grief when no one was present. Sleepy Tony hoped that when he was alone he might have a better opportunity of inspecting the secret fasting chamber, and perhaps he might find some crack through which he could spy upon what was going on. The more he tormented himself, the more depressed became the mermaid, and although she still maintained a cheerful countenance, her friendliness no longer came from the heart as before.
Some weeks passed by, and matters remained at a standstill, neither worse nor better, when one Thursday Sleepy Tony found a small space near the window where the curtains had slightly shifted, so that he could look into the chamber. The secret chamber had no floor, but looked like a great square tank, filled with water many feet deep. Herein swam his much-loved mermaid. From her head to her middle she was a beautiful woman, but from the navel downwards she was wholly a fish, covered with scales and provided with fins. Sometimes she threshed the water with her broad fish's tail and it dashed high up.
The spy shrunk back confounded and made his way home very sorrowfully. What would he not have given to have blotted the sight from his memory! He thought of one thing and another, but could not decide on what to do.
In the evening the cock crowed three times as usual, but the mermaid did not come back to him. He lay awake all night, but the fair one never came. She did not return till morning, when she was clad in black mourning garments and her face was covered with a thin silk handkerchief. Then she said, weeping, "O thou unhappy one! to have brought our happy life to an end by thy folly! Thou seest me to-day for the last time, and must return to thy former condition, and this thou hast brought upon thyself. Farewell, for the last time."
There was a sudden crash and a tremendous noise, as if the floor was giving way beneath his feet, and Sleepy Tony was hurled down stunned, and could not perceive what was happening to himself or about him.
No one knows how long afterwards it may have been when he recovered from his swoon, and found himself on the sea-shore close to the rock on which the fair mermaid had sat when she entered into the bond of friendship with him. Instead of the magnificent robes which he had worn every day in the dwelling of the mermaid, he found himself dressed in his old clothes, which were now much older and more ragged than he could possibly have supposed. Our friend's happy days were over, and no remorse, however bitter, could bring them back.
He walked on till he reached the first houses of his village. They were standing in the same places, but yet looked different. But what appeared to him much more wonderful when he looked round, was that the people were all strangers, and he did not meet a single face which he knew.
The people all looked strangely at him, too, as though he was a monster. Sleepy Tony went on to the farm of his parents, but here too he encountered only strangers, who knew him not, and whom he did not know. He asked in amazement for his father and brothers, but no one could tell him anything about them. At length an infirm old man came up, leaning on a stick, and said, "Peasant, the farmer whom you ask after has been sleeping in the ground for more than thirty years, and his sons must be dead too. How comes it, my good old man, that you ask after people who have been so long forgotten?" The words "old man" took Sleepy Tony so much aback that he was unable to ask another question. He felt his limbs trembling, turned his back on the strange people, and went out at the gate. The expression "old man" left him no peace; it fell upon him with a crushing weight, and his feet refused him their office.