And after that Arthur went into Armorica, and with him Mabon the son
of Mellt, and Gware Gwallt Euryn, to seek the two dogs of Glythmyr
Ledewic. And when he had got them, he went to the West of Ireland,
in search of Gwrgi Seven; and Odgar the son of Aedd king of Ireland
went with him. And thence went Arthur into the North, and captured
Kyledyr Wyllt; and he went after Yskithyrwyn Penbaedd. And Mabon the
son of Mellt came with the two dogs of Glythmyr Ledewic in his hand,
and Drudwyn, the cub of Greid the son of Eri. And Arthur went
himself to the chase, leading his own dog Cavall. And Kaw, of North
Britain, mounted Arthur's mare Llamrei, and was first in the attack.
Then Kaw, of North Britain, wielded a mighty axe, and absolutely
daring he came valiantly up to the boar, and clave his head in twain.
And Kaw took away the tusk. Now the boar was not slain by the dogs
that Yspaddaden had mentioned, but by Cavall, Arthur's own dog.

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.