And Osgar, that never was afraid before any enemy, set out for Teamhair, and three hundred of his men with him. And on the way they saw a woman of the Sidhe washing clothes at a river, and there was the colour of blood on the water where she was washing them. And Osgar said to her: "There is red on the clothes you are washing; and it is for the dead you are washing them." And the woman answered him, and it is what she said: "It is not long till the ravens will be croaking over your own head after the battle." "Is there any weakness in our eyes," said Osgar, "that a little story like that would set us crying? And do another foretelling for us now," he said, "and tell us will any man of our enemies fall by us before we ourselves are made an end of?"

"There will nine hundred fall by yourself," she said; "and the High King himself will get his death-wound from you."

Osgar and his men went on then to the king's house at Teamhair, and they got good treatment, and the feast was made ready, and they were three days at pleasure and at drinking.

And on the last day of the drinking, the High King called out with a loud voice, and he asked Osgar would he make an exchange of spears with him. "Why do you ask that exchange," said Osgar, "when I myself and my spear were often with yourself in time of battle? And you would not ask it of me," he said, "if Finn and the Fianna were with me now." "I would ask it from any fighting man among you," said the king, "and for rent and tribute along with it." "Any gold or any treasure you might ask of us, we would give it to you," said Osgar, "but it is not right for you to ask my spear." There were very high words between them then, and they threatened one another, and at the last the High King said: "I will put my spear of the seven spells out through your body." "And I give my word against that," said Osgar, "I will put my spear of the nine spells between the meeting of your hair and your beard."

With that he and his men rose up and went out of Teamhair, and they stopped to rest beside a river, and there they heard the sound of a very sorrowful tune, that was like keening, played on a harp. And there was great anger on Osgar when he heard that, and he rose up and took his arms and roused his people, and they went on again to where Finn was. And there came after them a messenger from the High King, and the message he brought was this, that he never would pay tribute to the Fianna or bear with them at all from that time.

And when Finn heard that, he sent a challenge of battle, and he gathered together all the Fianna that were left to him. But as to the sons of Morna, it was to the High King of Ireland they gathered.

And it was at the hill of Gabhra the two armies met, and there were twenty men with the King of Ireland for every man that was with Finn.

And it is a very hard battle was fought that day, and there were great deeds done on both sides; and there never was a greater battle fought in Ireland than that one.

And as to Osgar, it would be hard to tell all he killed on that day; five score of the Sons of the Gael, and five score fighting men from the Country of Snow, and seven score of the Men of Green Swords that never went a step backward, and four hundred from the Country of the Lion, and five score of the sons of kings; and the shame was for the King of Ireland.

But as to Osgar himself, that began the day so swift and so strong, at the last he was like leaves on a strong wind, or like an aspen-tree that is falling. But when he saw the High King near him, he made for him like a wave breaking on the strand; and the king saw him coming, and shook his greedy spear, and made a cast of it, and it went through his body and brought him down on his right knee, and that was the first grief of the Fianna. But Osgar himself was no way daunted, but he made a cast of his spear of the nine spells that went into the High King at the meeting of the hair and the beard, and gave him his death. And when the men nearest to the High King saw that, they put the king's helmet up on a pillar, the way his people would think he was living yet. But Osgar saw it, and he lifted a thin bit of a slab-stone that was on the ground beside him, and he made a cast of it that broke the helmet where it was; and then he himself fell like a king.