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, and went towards a court that there was upon the mountain; and through fear they could not proceed except with their faces looking backwards, so that unawares they fell into the lake. And they were all drowned except Blodeuwedd herself; and her Gwydion overtook. And he said unto her, "I will not slay thee; but I will do unto thee worse than that. For I will turn thee into a bird. And because of the shame thou hast done unto Llew Llaw Gyffes, thou shalt never show thy face in the light of day henceforth; and that through fear of all the other birds. For it shall be their nature to attack thee, and to chase thee from wheresoever they may find thee. And thou shalt not lose thy name, but shalt be always called Blodeuwedd."
The Flight of Blodeuwedd and her Maidens.