Thialfi was the name of the peasant's son. He was a growing lad and had an appetite that had not been satisfied for long. While the meat was on the table his father and mother had kept him going here and there, carrying water, putting fagots on the fire, and holding a blazing stick so that those at the table might see to eat. There was not much left for him when he was able to sit down, for Thor and Loki had great appetites, and the lad's father and mother had eaten to make up for days of want. So Thialfi got little out of that plentiful feast.
When the meal was finished they lay down on the benches. Thor, because he had made a long journey that day, slept very soundly. Thialfi lay down on a bench, too, but his thoughts were still upon the food. When all were asleep, he thought, he would take one of the bones that were in the skins above him, and break and gnaw it.
So in the dead of the night the lad stood up on the bench and took down the goatskins that Thor had left so carefully there. He took out a bone, broke it, and gnawed it for the marrow. Loki was awake and saw him do this, but he, relishing mischief as much as ever, did nothing to stay the lad.
He put the bone he had broken back in the skins and he left the skins back in the hole above the fireplace. Then he went to sleep on the bench.
In the morning, as soon as they were up, the first thing Thor did was to take the skins out of the hole. He carried them carefully out to the hollow where he had left the goats standing. He put each goatskin down with the bones in it. He struck each with his hammer, and the goats sprang up alive, horns and hoofs and all.
But one was not as he had been before. He limped badly. Thor examined the leg and found out that one bone was broken. In terrible anger he turned on the peasant, his wife, and his son. "A bone of this goat has been broken under your roof," he shouted. "For that I shall destroy your house and leave you all dead under it." Thialfi wept. Then he came forward and touched the knees of Thor. "I did not know what harm I did," he said. "I broke the bone."
Thor had his hammer lifted up to crush him into the earth. But he could not bring it down on the weeping boy. He let his hammer rest on the ground again. "You will have to do much service for me for having lamed my goat," he said. "Come with me."
And so the lad Thialfi went off with Thor and Loki. Thor took in his powerful hands the shafts of the chariot of brass and he dragged it into a lonely mountain hollow where neither men nor Giants came. And they left the goats in a great, empty forest to stay resting there until Thor called to them again.
Thor and Loki and the lad Thialfi went across from Midgard into Jötunheim. Because of Miölnir, the great hammer that he carried, Thor felt safe in the Realm of the Giants. And Loki, who trusted in his own cunning, felt safe, too. The lad Thialfi trusted in Thor so much that he had no fear. They were long in making the journey, and while they were traveling Thor and Loki trained Thialfi to be a quick and a strong lad.
One day they came out on a moor. All day they crossed it, and at night it still stretched far before them. A great wind was blowing, night was falling, and they saw no shelter near. In the dusk they saw a shape that looked to be a mountain and they went toward it, hoping to find some shelter in a cave.