Diarmuid heard them coming, and he put his hand on his weapons and asked who was at the door. "We are of the children of Morna," they said, "Aodh, son of Andela, and Aonghus, son of Art Og." "What brings you to this wood?" said Diarmuid. "Finn, son of Cumhal, that put us looking for your head, if you are Diarmuid, grandson of Duibhne," said they. "I am indeed," said Diarmuid. "If that is so," they said, "Finn will take nothing from us but your head, or a fistful of the berries of the quicken-tree of Dubhros as satisfaction for the death of his father." "It is not easy for you to get either of those things," said Diarmuid, "and it is a pity for any one to be under the power of that man. And besides that," he said, "I know it was he himself made an end of your fathers, and that was enough satisfaction for him to get; and if you do bring him what he asks, it is likely he will not make peace with you in the end." "Is it not enough for you," said Aodh, "to have brought his wife away from Finn without speaking ill of him?" "It is not for the sake of speaking ill of him I said that," said Diarmuid, "but to save yourselves from the danger he has sent you into."

"What are those berries Finn is asking?" said Grania, "that they cannot be got for him?"

Diarmuid told her then the whole story of the berry the Tuatha de Danaan had lost, and of the tree that had sprung up from it, and of the man of Lochlann that was keeping the tree. "And at the time Finn sent me hiding here and became my enemy," he said, "I got leave from the Surly One to hunt, but he bade me never to meddle with the berries. And now, sons of Morna," he said, "there is your choice, to fight with me for my head, or to go asking the berries of the Surly One." "I swear by the blood of my people," said each of them, "I will fight with yourself first."

With that the two young men made ready for the fight. And it is what they chose, to fight with the strength of their hands alone. And Diarmuid put them down and bound the two of them there and then. "That is a good fight you made," said Grania. "But, by my word," she said, "although the children of Morna do not go looking for those berries, I will not lie in a bed for ever till I get a share of them; and I will not live if I do not get them," she said. "Do not make me break my peace with the Surly One," said Diarmuid, "for he will not let me take them." "Loose these tyings from us," said the two young men, "and we will go with you, and we will give ourselves for your sake." "You must not come with me," said Diarmuid; "for if you got the full of your eyes of that terrible one, you would be more likely to die than to live." "Well, do us this kindness," they said then; "loosen these bonds on us, and give us time to go by ourselves and see the fight before you strike off our heads." So Diarmuid did that for them.

Then Diarmuid went to the Surly One, and he chanced to be asleep before him, and he gave him a stroke of his foot the way he lifted his head and looked up at him, and he said: "Have you a mind to break our peace, Grandson of Duibhne?" "That is not what I want," said Diarmuid; "but it is Grania, daughter of the High King," he said, "has a desire to taste those berries, and it is to ask a handful of them I am come." "I give my word," said he, "if she is to die for it, she will never taste a berry of those berries." "I would not do treachery on you," said Diarmuid; "and so I tell you, willing or unwilling, I will take those berries from you."

When the Surly One heard that, he rose up on his feet and lifted his club and struck three great blows on Diarmuid, that gave him some little hurt in spite of his shield. But when Diarmuid saw him not minding himself, he threw down his weapons, and made a great leap and took hold of the club with his two hands. And when he had a hold of the club he struck three great blows on him that put his brains out through his head. And the two young men of the sons of Morna were looking at the whole fight; and when they saw the Surly One was killed they came out. And Diarmuid sat down, for he was spent with the dint of the fight, and he bid the young men to bury the body under the thickets of the wood, the way Grania would not see it. "And after that," he said, "let you go back to her and bring her here." So they dragged away the body and buried it, and they went then for Grania and brought her to Diarmuid.

"There are the berries you were asking, Grania," he said, "and you may take what you like of them now." "I give my word," said Grania, "I will not taste a berry of those berries but the one your own hand will pluck, Diarmuid." Diarmuid rose up then and plucked the berries for Grania, and for the children of Morna, and they ate their fill of them. And he said then to the young men: "Take all you can of these berries, and bring them with you to Finn, and tell him it was yourselves made an end of the Surly One of Lochlann." "We give you our word," said they, "we begrudge giving any of them to Finn."

But Diarmuid plucked a load of the berries for them, and they gave him great thanks for all he had done; and they went back to where Finn was with the Fianna. And Diarmuid and Grania went up into the top of the tree where the bed of the Surly One was. And the berries below were but bitter berries beside the ones above in the tree. And when the two young men came to Finn, he asked news of them. "We have killed the Surly One of Lochlann," they said; "and we have brought you berries from the quicken-tree of Dubhros, in satisfaction for your father, that we may get peace from you." They gave the berries then into Finn's hand, and he knew them, and he said to the young men: "I give you my word," he said, "it was Diarmuid himself plucked those berries, for I know the smell of his hand on them; and I know well it was he killed the Surly One, and I will go now and see is he himself alive at the quicken-tree."

After that he called for the seven battalions of the Fianna, and he set out and went forward to Dubhros. And they followed the track of Diarmuid to the foot of the quicken-tree, and they found the berries without protection, so they ate their fill of them. And the great heat of the day came on them, and Finn said they would stop where they were till the heat would be past; "for I know well," he said, "Diarmuid is up in the quicken-tree." "It is a great sign of jealousy in you, Finn," said Oisin, "to think that Diarmuid would stop there up in the quicken-tree and he knowing you are wanting to kill him."

Finn asked for a chess-board after that, and he said to Oisin: "I will play a game with you now on this." They sat down then, Oisin and Osgar and Lugaidh's Son and Diorraing on the one side of the board, and Finn on the other side.