Gwydion arose and dressed himself, and
went with the swineherd, and stood beside the sty. Then the swineherd
opened the sty. And as soon as he opened it, behold, she leaped forth,
and set off with great speed. And Gwydion followed her, and she went
against the course of a river, and made for a brook, which is now called
Nant y Llew. And there she halted and began feeding. And Gwydion came
under the tree, and looked what it might be that the sow was feeding on.
And he saw that she was eating putrid flesh and vermin. Then looked he
up to the top of the tree, and as he looked he beheld on the top of the
tree an eagle, and when the eagle shook itself, there fell vermin and
putrid flesh from off it, and these the sow devoured. And it seemed to
him that the eagle was Llew. And he sang an Englyn.

"Oak that grows between the two banks;
Darkened is the sky and hill!
Shall I not tell him by his wounds,
That this is Llew?"

Upon this the eagle came down until he reached the centre of the tree.
And Gwydion sang another Englyn.

"Oak that grows in upland ground,
Is it not wetted by the rain? Has it not been drenched
By nine score tempests?
It bears in its branches Llew Llaw Gyffes!"

Then the eagle came down until he was on the lowest branch of the tree,
and thereupon this Englyn did Gwydion sing.

"Oak that grows beneath the steep;
Stately and majestic is its aspect!
Shall I not speak it?
That Llew will come to my lap?"

And the eagle came down upon Gwydion's knee. And Gwydion struck him with
his magic wand, so that he returned to his own form. No one ever saw a
more piteous sight, for he was nothing but skin and bone.

Then he went unto Caer Dathyl, and there were brought unto him good
physicians that were in Gwynedd, and before the end of the year he was
quite healed.

"Lord," said he unto Math the son of Mathonwy, "it is full time now that
I have retribution of him by whom I have suffered all this woe." "Truly,"
said Math, "he will never be able to maintain himself in the possession
of that which is thy right." "Well," said Llew, "the sooner I have my
right, the better shall I be pleased."

Then they called together the whole of Gwynedd, and set forth to Ardudwy.
And Gwydion went on before and proceeded to Mur y Castell. And when
Blodeuwedd heard that he was coming, she took her maidens with her, and
fled to the mountain. And they passed through the river Cynvael,