And Gwalchmai was much
grieved to see Arthur in this state; and he questioned him, saying, "Oh
my Lord! what has befallen thee?" "In sooth, Gwalchmai," said Arthur, "I
am grieved concerning Owain, whom I have lost these three years; and I
shall certainly die, if the fourth year passes without my seeing him. Now
I am sure, that it is through the tale which Kynon the son of Clydno
related, that I have lost Owain." "There is no need for thee," said
Gwalchmai, "to summon to arms thy whole dominions, on that account; for
thou thyself, and the men of thy household, will be able to avenge Owain,
if he be slain; or to set him free, if he be in prison; and if alive, to
bring him back with thee." And it was settled, according to what
Gwalchmai had said.

Then Arthur and the men of his household prepared to go and seek Owain;
and their number was three thousand, beside their attendants. And Kynon
the son of Clydno acted as their guide. And Arthur came to the Castle,
where Kynon had been before. And when he came there the youths were
shooting in the same place, and the yellow man was standing hard by. When
the yellow man saw Arthur, he greeted him, and invited him to the Castle.
And Arthur accepted his invitation, and they entered the Castle together.
And great as was the number of his retinue, their presence was scarcely
observed in the Castle, so vast was its extent. And the maidens rose up
to wait on them. And the service of the maidens appeared to them all to
excel any attendance they had ever met with; and even the pages who had
charge of the horses, were no worse served, that night, than Arthur
himself would have been, in his own Palace.

The next morning, Arthur set out thence, with Kynon for his guide, and
came to the place where the black man was. And the stature of the black
man was more surprising to Arthur, than it had been represented to him.
And they came to the top of the wooded steep, and traversed the valley,
till they reached the green tree; where they saw the fountain, and the
bowl and the slab. And upon that, Kai came to Arthur, and spoke to him.
"My Lord," said he, "I know the meaning of all this, and my request is,
that thou wilt permit me to throw the water on the slab, and to receive
the first advantage that may befall." And Arthur gave him leave.

Then Kai threw a bowlful of water upon the slab, and immediately there
came the thunder, and after the thunder the shower. And such a
thunderstor