"TWO YOUTHS WERE LEADING THE MAIDEN FORTH"
"Why are you treating her thus?" asked Owain.
They told him of the compact that was between them concerning the maiden. "Owain has failed her," said they, "therefore she must be burnt according to our agreement."
"Well," said Owain, "I know him for a good knight, and if he had known of the maiden's peril he would have come to her rescue; but if you will accept me in his stead I will do battle for her."
This was agreed; and the fight began. But the two were together stronger than Owain, and he was hard beset. Then the lion came to his help, and they two were stronger than the young men. So they said to him: "Chieftain, we did not agree to fight with thy lion, but only with thee." Then Owain shut the lion up in the stone vault where the maiden had been imprisoned, and blocked up the entrance with stones, and returned to the fight. But he was weak from loss of blood, and the young men pressed hard upon him; and the lion roared like thunder when he heard that his master was in trouble, and he burst through the wall, and rushed upon the young men, and slew them both.
So Luned was saved, and glad was she when she found it was Owain indeed who had come to her rescue. Together they sought the dominions of the Countess of the Fountain; and she and Owain and the lion and Luned lived all happily together for the rest of their lives.
From the "Mabinogion."