So they proceeded to the place where was the Owl of Cwm Cawlwyd.
"Owl of Cwm Cawlwyd, here is an embassy from Arthur; knowest thou
aught of Mabon the son of Modron, who was taken after three nights
from his mother?" "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 that has travelled most, the Eagle of Gwern Abwy."

Gwrhyr said, "Eagle of Gwern Abwy, we have come to thee an embassy
from Arthur, to ask thee if thou knowest aught of Mabon the son of
Modron, who was taken from his mother when he was three nights old."
The Eagle said, "I have been here for a great space of time, and when
I first came hither there was a rock here, from the top of which I
pecked at the stars every evening; and now it is not so much as a
span high. From that day to this I have been here, and I have never
heard of the man for whom you inquire, except once when I went in
search of food as far as Llyn Llyw. And when I came there, I struck
my talons into a salmon, thinking he would serve me as food for a
long time. But he drew me into the deep, and I was scarcely able to
escape from him. After that I went with my whole kindred to attack
him, and to try to destroy him, but he sent messengers, and made
peace with me; and came and besought me to take fifty fish spears out
of his back. Unless he know something of him whom you seek, I cannot
tell who may. However, I will guide you to the place where he is."

So they went thither; and the Eagle said, "Salmon of Llyn Llyw, I