And after Yskithyrwyn Penbaedd was killed, Arthur and his host departed to Gelli Wic in Cornwall. And thence he sent Menw the son of Teirgwaedd to see if the precious things were between the two ears of Twrch Trwyth, since it were useless to encounter him if they were not there. Albeit it was certain where he was, for he had laid waste the third part of Ireland. And Menw went to seek for him, and he met with him in Ireland, in Esgeir Oervel. And Menw took the form of a bird; and he descended upon the top of his lair, and strove to snatch away one of the precious things from him, but he carried away nothing but one of his bristles. And the boar rose up angrily and shook himself so that some of his venom fell upon Menw, and he was never well from that day forward.
After this Arthur sent an embassy to Odgar, the son of Aedd king of Ireland, to ask for the cauldron of Diwrnach Wyddel, his purveyor. And Odgar commanded him to give it. But Diwrnach said, “Heaven is my witness, if it would avail him anything even to look at it, he should not do so.” And the embassy of Arthur returned from Ireland with this denial. And Arthur set forward with a small retinue, and entered into Prydwen, his ship, and went over to Ireland. And they proceeded into the house of Diwrnach Wyddel. And the hosts of Odgar saw their strength. When they had eaten and drunk as much as they desired, Arthur demanded to have the cauldron. And he answered, “If I would have given it to any one, I would have given it at the word of Odgar king of Ireland.”
When he had given them this denial, Bedwyr arose and seized hold of the cauldron, and placed it upon the back of Hygwyd, Arthur’s servant, who was brother, by the mother’s side, to Arthur’s servant, Cachamwri. His office was always to carry Arthur’s cauldron, and to place fire under it. And Llenlleawg Wyddel seized Caledvwlch, and brandished it. And they slew Diwrnach Wyddel and his company. Then came the Irish and fought with them. And when he had put them to flight, Arthur with his men went forward to the ship, carrying away the cauldron full of Irish money. And he disembarked at the house of Llwydden the son of Kelcoed, at Porth Kerddin in Dyved. And there is the measure of the cauldron.
Then Arthur summoned unto him all the warriors that were in the three Islands of Britain, and in the three Islands adjacent, and all that were in France and in Armorica, in Normandy and in the Summer Country, and all that were chosen footmen and valiant horsemen. And with all these he went into Ireland. And in Ireland there was great fear and terror concerning him. And when Arthur had landed in the country, there came unto him the saints of Ireland and besought his protection. And he granted his protection unto them, and they gave him their blessing. Then the men of Ireland came unto Arthur, and brought him provisions. And Arthur went as far as Esgeir Oervel in Ireland, to the place where the Boar Trwyth was with his seven young pigs. And the dogs were let loose upon him from all sides. That day until evening the Irish fought with him, nevertheless he laid waste the fifth part of Ireland. And on the day following the household of Arthur fought with him, and they were worsted by him, and got no advantage. And the third day Arthur himself encountered him, and he fought with him nine nights and nine days without so much as killing even one little pig. The warriors inquired of Arthur what was the origin of that swine; and he told them that he was once a king, and that God had transformed him into a swine for his sins.
Then Arthur sent Gwrhyr Gwalstawt Ieithoedd, to endeavour to speak with him. And Gwrhyr assumed the form of a bird, and alighted upon the top of the lair, where he was with the seven young pigs. And Gwrhyr Gwalstawt Ieithoedd asked him, “By him who turned you into this form, if you can speak, let some one of you, I beseech you, come and talk with Arthur.” Grugyn Gwrych Ereint made answer to him. (Now his bristles were like silver wire, and whether he went through the wood or through the plain, he was to be traced by the glittering of his bristles.) And this was the answer that Grugyn made: “By him who turned us into this form, we will not do so, and we will not speak with Arthur. That we have been transformed thus is enough for us to suffer, without your coming here to fight with us.” “I will tell you. Arthur comes but to fight for the comb, and the razor, and the scissors which are between the two ears of Twrch Trwyth.” Said Grugyn, “Except he first take his life, he will never have those precious things. And to-morrow morning we will rise up hence, and we will go into Arthur’s country, and there will we do all the mischief that we can.”
So they set forth through the sea towards Wales. And Arthur and his hosts, and his horses and his dogs, entered Prydwen, that they might encounter them without delay. Twrch Trwyth landed in Porth Cleis in Dyved, and Arthur came to Mynyw. The next day it was told to Arthur that they had gone by, and he overtook them as they were killing the cattle of Kynnwas Kwrr y Vagyl, having slain all that were at Aber Gleddyf, of man and beast, before the coming of Arthur.
Now when Arthur approached, Twrch Trwyth went on as far as Preseleu, and Arthur and his hosts followed him thither, and Arthur sent men to hunt him; Eli and Trachmyr, leading Drudwyn the whelp of Greid the son of Eri, and Gwarthegyd the son of Kaw, in another quarter, with the two dogs of Glythmyr Ledewic, and Bedwyr leading Cavall, Arthur’s own dog. And all the warriors ranged themselves around the Nyver. And there came there the three sons of Cleddyf Divwlch, men who had gained much fame at the slaying of Yskithyrwyn Penbaedd; and they went on from Glyn Nyver, and came to Cwm Kerwyn.
And there Twrch Trwyth made a stand, and slew four of Arthur’s champions, Gwarthegyd the son of Kaw, and Tarawc of Allt Clwyd, and Rheidwn the son of Eli Atver, and Iscovan Hael. And after he had slain these men, he made a second stand in the same place. And there he slew Gwydre the son of Arthur, and Garselit Wyddel, and Glew the son of Ysgawd, and Iscawyn the son of Panon; and there he himself was wounded.
And the next morning before it was day, some of the men came up with him. And he slew Huandaw, and Gogigwr, and Penpingon, three attendants upon Glewlwyd Gavaelvawr, so that Heaven knows he had not an attendant remaining, excepting only Llaesgevyn, a man from whom no one ever derived any good. And together with these he slew many of the men of that country, and Gwlydyn Saer, Arthur’s chief Architect.
Then Arthur overtook him at Pelumyawc, and there he slew Madawc the son of Teithyon, and Gwyn the son of Tringad, the son of Neved, and Eiryawn Penllorau. Thence he went to Aberteivi, where he made another stand, and where he slew Kyflas the son of Kynan, and Gwilenhin king of France. Then he went as far as Glyn Ystu, and there the men and the dogs lost him.