‘Oh, Gwalchmai, I am grieved concerning Owen, whom I have lost these three years, and if a fourth year passes without him I can live no longer. And sure am I that the tale told by Kynon the son of Clydno caused me to lose him. I will go myself with the men of my household to avenge him if he is dead, to free him if he is in prison, to bring him back if he is alive.’ Then Arthur and three thousand men of his household set out in quest of Owen, and took Kynon for their guide. When Arthur reached the castle, the youths were shooting in the same place, and the same yellow man was standing by, and as soon as he beheld Arthur he greeted him and invited him in, and they entered together. So vast was the castle that the king’s three thousand men were of no more account than if they had been twenty. At sunrise Arthur departed thence, with Kynon for his guide, and reached the black man first, and afterwards the top of the wooded hill, with the fountain and the bowl and the tree. ‘My lord,’ said Kai, ‘let me throw the water on the slab, and receive the first adventure that may befall.’ ‘Thou mayest do so,’ answered Arthur, and Kai threw the water. Immediately all happened as before; the thunder and the shower of hail which killed many of Arthur’s men; the song of the birds and the appearance of the black knight. And Kai met him and fought him, and was overthrown by him. Then the knight rode away, and Arthur and his men encamped where they stood. In the morning Kai again asked leave to meet the knight and to try to overcome him, which Arthur granted. But once more he was unhorsed, and the black knight’s lance broke his helmet and pierced the skin even to the bone, and humbled in spirit he returned to the camp. After this every one of the knights gave battle, but none came out victor, and at length there only remained Arthur himself and Gwalchmai. ‘Oh, let me fight him, my lord,’ cried Gwalchmai, as he saw Arthur taking up his arms. ‘Well, fight then,’ answered Arthur, and Gwalchmai threw a robe over himself and his horse, so that none knew him. All that day they fought, and neither was able to throw the other, and so it was on the next day. On the third day the combat was so fierce that they fell both to the ground at once, and fought on their feet, and at last the black knight gave his foe such a blow on his head that his helmet fell from his face. ‘I did not know it was thee, Gwalchmai,’ said the black knight. ‘Take my sword and my arms.’ ‘No,’ answered Gwalchmai, ‘it is thou, Owen, who art the victor, take thou my sword’; but Owen would not. ‘Give me your swords,’ said Arthur from behind them, ‘for neither of you has vanquished the other,’ and Owen turned and put his arms round Arthur’s neck. The next day Arthur would have given orders to his men to make ready to go back whence they came, but Owen stopped him.