Next morning Fin called up the cowherd and said, "I am going to have a feast in this castle, and I would like to have some fresh pork. There is a wild sow in the north of Erin with two pigs, and if you bring her to me before the feast, you'll have my thanks."
"I'll go and bring her to you," said the cowherd. So after breakfast he took his sword, went to the north of Erin, and stole up to the sow and two pigs, and whipped the tails off the three of them, before they knew he was in it. Then he faced the wild sow and fought with her for four days and five nights, and on the morning of the fifth day he knocked her dead. At the last blow, his sword stuck in her backbone and he couldn't draw it out. But with one pull he broke the blade, and stood there over her with only the hilt in his hand. Then he put his foot on one of her jaws, took the other in his hands, and splitting her evenly from the nose to the tail, made two halves of her.
He threw one half on his shoulder; and that minute the big Gruagach with one eye in his head came along and made an offer of his club at him to kill him. But the cowherd jumped aside, and catching the Gruagach by one of his legs, threw him up on to the half of the wild sow on his shoulder, and taking the other half of her from the ground, clapped that on the top of the Gruagach, and ran away to Fin's castle as fast as his legs could carry him.
The sentry at the castle gate ran in and said: "The cowherd is running to the castle, and the size of a mountain on his back." "Go out now," said Conán Maol, "and stop him where he is, or he'll throw down the castle if he comes here with the load that's on him." But before the sentry was back at his place, the cowherd was at the gate shaking the load off his back and the castle to its foundations, so that every dish and vessel in it was broken to bits.
The Gruagach jumped from the ground, rubbed his legs and every part of him that was sore from the treatment he got. He was so much in dread of the cowherd that he ran with all the strength that was in him, and never stopped to look back till he was in the north of Erin.
Next morning the cowherd went out with the cows, drove them back in the evening, and while picking the thigh-bone of a bullock for his supper, Oscar, son of Oisin, the strongest man of the Fenians of Erin, came up to him and took hold of the bone to pull it from his hand. The cowherd held one end and Oscar the other, and pulled till they made two halves of the bone. "What did you carry away?" asked the cowherd. "What I have in my hand," said Oscar. "And I kept what I held in my fist," said the cowherd. "There is that for you now," said Oscar, and he hit him a slap.
The cowherd said no word in answer, but next morning he asked his wages of Fin. "Oh, then," said Fin, "I'll pay you and welcome, for you are the best man I have ever had or met with."
Then the cowherd went away to Cahirciveen in Kerry where he had an enchanted castle. But before he went he invited Fin MacCumhail and the Fenians of Erin to have a great feast with him. "For," said he to Fin, "I'm not a cowherd at all, but the son of the king of Alba, and I'll give you good cheer."
When the Fenians came to the place, they found the finest castle that could be seen. There were three fires in each room and seven spits at every fire. When they had gone and sat down in their places, there was but one fire in each room. "Rise up, every man of you," said Fin, "or we are lost; for this is an enchanted place."
They tried to rise, but each man was fastened to his seat, and the seat to the floor; and not one of them could stir. Then the last fire went out and they were in darkness.