And Arthur called to Kynddelig the Guide, "Go thou upon this
expedition with the chieftain." For as good a guide was he in a land
which he had never seen as he was in his own.

He called Gwrhyr Gwalstawt Ieithoedd, because he knew all tongues.

He called Gwalchmai the son of Gwyar, because he never returned home
without achieving the adventure of which he went in quest. He was
the best of footmen and the best of knights. He was nephew to
Arthur, the son of his sister, and his cousin.

And Arthur called Menw the son of Teirgwaedd, in order that if they
went into a savage country, he might cast a charm and an illusion
over them, so that none might see them whilst they could see every
one.

They journeyed until they came to a vast open plain, wherein they saw
a great castle, which was the fairest of the castles of the world.
And they journeyed that day until the evening, and when they thought
they were nigh to the castle, they were no nearer to it than they had
been in the morning. And the second and the third day they
journeyed, and even then scarcely could they reach so far. And when
they came before the castle, they beheld a vast flock of sheep, which
was boundless and without an end. And upon the top of a mound there
was a herdsman, keeping the sheep. And a rug made of skins was upon
him; and by his side was a shaggy mastiff, larger than a steed nine
winters old. Never had he lost even a lamb from his flock, much less
a large sheep. He let no occasion ever pass without doing some hurt
and harm. All the dead trees and bushes in the plain he burnt with