Etain slept after her delivery, and entrusted the boy to her maid till they should continue their journey.  The maid fell asleep, and a she-wolf came and carried off the child to her lair in the place no known as Cormac's Cave.  Lugna came to where she lay, and she told him all that had happened.  He brought her to his house, and proclaimed that whosoever should find tidings of the child should obtain in reward whatever he asked.

    Grec MacArod was abroad one day, and coming upon the cave, he saw the whelps playing before it and the child creeping among them.  He brought the news to Lugna, and was granted the territory where the Grecraige now dwell.  The child and the whelps were brought home from the cave, and the child was named Cormac, for that was the name his father had given him.  He was the delight of many for his beauty and grace and dignity and strength and judgment.

    One day, as he was playing with Lugna's sons, he struck one of them.  The lad exclaimed that it was too much to suffer a blow from one whose race and kindred were unknown, save that he was a fatherless child.  Cormac complained to Lugna, and Lugna told him that he was the son of the true prince Art, son of Conn of the Hundred Battles, and that it was prophesied that he should steer his father's rudder, for there would be no prosperity in Tara until he should reign there.  "Let us go," said Cormac, "to seek recognition in my father's house in Tara."  "Let us go then," said Lugna.

    They went to Tara, and MacCon welcomed them and took Cormac into fosterage.  There was a woman hospitaller in Tara at that time named Bennaid.  Her sheep grazed the queen's woad.  MacCon awarded the sheep to the queen in compensation for the grazing of the woad.  "No," said Cormac.  "The shearing of the sheep is enough in compensation for the grazing of the woad, for both will grow again."  "It is a true judgment!" said all. "It is the son of a true prince who has given judgment!"  The side of the house on which the false judgment had been given fell down the slope.  It will stay thus forever.  That is the Crooked Mound of Tara.

    The men of Ireland expelled MacCon and gave his kingship to Cormac.  Everything prospered while he lived.  His wolves remained with him, and the reason for the great honor he received was that he had been reared by wolves.

    Tara was restored by Cormac so that it was grander than ever before, houses fences and buildings.  Well was it with Ireland in his time.  The rivers teemed with fish, the woods with mast, the plains with honey, on account of the justice of his rule.  Deer were so plentiful that there was no need to hunt them.  Cormac built the noblest building that ever was raised in Tara.  Though he was opposed by the Ulstermen, he was never deprived of the kingship till his death.  He died in the raith of the hospitaller in Cletech when a salmon bone stuck in his throat.

    Cormac ordered that he should not be buried in Bruig na Boinne, for he did not adore the same god as those who were buried there.  He ordered his burial in Ros na Rig with his face due east towards the rising sun.