Then said Arthur, "It were well for thee, Gwrhyr Gwalstawt Ieithoedd, to go upon this quest, for thou knowest all languages, and art familiar with those of the birds and the beasts. Go, Eidoel, likewise with my men in search of thy cousin. And as for you, Kay and Bedwyr, I have hope of whatever adventure ye are in quest of, that ye will achieve it. Achieve ye this adventure for me."
These went forward until they came to the Ousel of Cilgwri, and Gwrhyr adjured her for the sake of Heaven, saying, "Tell me if thou knowest aught of Mabon, the son of Modron, who was taken when three nights old from between his mother and the wall."
And the Ousel answered, "When I first came here there was a smith's anvil in this place, and I was then a young bird, and from that time no work has been done upon it, save the pecking of my beak every evening, and now there is not so much as the size of a nut remaining thereof; yet the vengeance of Heaven be upon me if during all that time I have ever heard of the man for whom you inquire. Nevertheless, there is a race of animals who were formed before me, and I will be your guide to them."
So they proceeded to the place where was the Stag of Redynvre.
"Stag of Redynvre, behold we are come to thee, an embassy from Arthur, for we have not heard of any animal older than thou. Say, knowest thou aught of Mabon?"
The stag said, "When first I came hither there was a plain all around me, without any trees save one oak sapling, which grew up to be an oak with an hundred branches. And that oak has since perished, so that now nothing remains of it but the withered stump; and from that day to this I have been here, yet have I never heard of the man for whom you inquire. Nevertheless, I will be your guide to the place where there is an animal which was formed before I was."
So they proceeded to the place where was the Owl of Cwm Cawlwyd, to inquire of him concerning Mabon.
And the owl said, "If I knew I would tell you. When first I came hither, the wide valley you see was a wooded glen. And a race of men came and rooted it up. And there grew there a second wood, and this wood is the third. My wings, are they not withered stumps? Yet all this time, even until to-day, I have never heard of the man for whom you inquire. Nevertheless, I will be the guide of Arthur's embassy until you come to the place where is the oldest animal in this world, and the one who has travelled most, the eagle of Gwern Abwy."