When they asked him his errand Owain replied that he was in quest of the knight who guards the fountain; and the Yellow Man, though very reluctantly, pointed out the way. All happened to Owain as it had to Kynon, save that the shower seemed more violent and the song of the birds even sweeter than before. And as they sang the Black Knight appeared, and rode violently upon Owain; but he was prepared to receive him, and they fought fiercely together. Their lances broke with the shock of their attack, and, drawing their swords, they fought until Owain struck the knight a blow which pierced through helmet, skull, and brain. Then the Black Knight, knowing he had received a mortal blow, turned his horse, and fled. But Owain pursued hard after him until they came to a lordly castle. When they reached the gate the Black Knight was allowed to enter; but Owain was so close behind that, when the portcullis fell, it struck his horse behind the saddle, and cut him in two, carrying away the rowels of the spurs which were on Owain's heels. So the rowels and part of the horse were outside and Owain was shut up inside with the other part of the horse between the two gates, for the inner one was closed. As the knight stood wondering what would happen next he saw through an opening in the upper part of the gate a street facing him, with a row of houses on either side; and from one of these houses came out a maiden, with yellow, curling locks, dressed in yellow satin, with shoes of parti-coloured leather. She approached the gate, and desired him to open it. "Truly, lady," said Owain ruefully, "I can no more open it for you than you can for me." "That is very sad," said the damsel; "yet it is the part of every woman to do what she can to succour you, for you are a loyal squire of dames, so I will do whatever is in my power for you. Take this ring, and put it on your finger, with the stone inside your hand, and close your hand upon the stone. As long as you conceal it, it will conceal you. Presently, when they have consulted together, they will come to fetch you, in order to put you to death, and will be much upset when they cannot find you. But I shall sit on the horse-block yonder, and you will see me though I cannot see you. Come, therefore, and put your hand upon my shoulder, that I may know you are near; and whichever way I go, do you follow me."