At length the end of the year arrived, and the two giant brothers, well pleased to have secured so careful a servant, gave him as his wages two great sacks filled with gold. They had never been made so comfortable before, and again begged Thorstein to remain another year.

To this Thorstein would not agree, but said he would remain six months, as he was more than ever determined to find out the mystery of the locked room.

He therefore carefully watched every opportunity, hoping Osric might perhaps by chance leave the key behind him. But the giant was much too careful to do so.

One morning, when Thorstein had risen particularly early, in order to bake the bread, the thought of the locked chamber came constantly before him, and while kneading the dough he kept puzzling his head as to how he could circumvent the giant. Suddenly a bright idea struck him. Creeping softly to the back door, which led into the stable yard, he gave a loud knock, and then ran back as quickly as he could to the room where the giants were sleeping, and asked them, with a scared face (holding the dough he had been kneading in his hands), whether they had not heard some one knocking.

“Oh yes,” they both replied; “we did hear something, but we thought it was you knocking down a chair while you were sweeping.”

Thorstein declared he had not knocked down anything, and added that he was afraid to open the door, for he was quite positive some one had knocked there.

The giants said he was quite right not to open it, for it might be some unfriendly giant; so they got up themselves, and ran to the door to see who had disturbed them at that early hour in the morning.

No sooner had they left the room than Thorstein drew forth the key of the mysterious chamber, which the biggest giant always kept under his pillow at night, and quickly taking an impression of it in the dough he had in his hand, replaced the key in its former place.

When the brothers came back they were not a little put out, for of course they found no one at the door, and declared that Thorstein had only said it in order to make fun of them.

But this Thorstein denied stoutly, and maintained that he had heard some one knocking, and supposed, whoever it was, must have run away.