"I shall fight with none but of the blood-royal," Sir Marhaus sent back word; "your champion must be either a king's son or a queen's."

Whereupon King Mark sent word to say that his champion was better born than ever Sir Marhaus was, and that his name was Tristram of Lyonesse, whose father was a king, and his mother a queen, and a king's sister.

So it was arranged that the fight should take place on an island near, and thither Sir Tristram went in a ship with his horse, and his man Gouvernail, and all that he could need. And so noble he looked, and so brave, and of so good heart, that not one who saw him depart could refrain from weeping, for they never thought to see him return alive.

So, on the island those two noble knights met, and Sir Marhaus was sad to see one so young and well-favoured come against him. "I sore repent," said he, "of your courage, for hear me that against all the noblest and trustiest knights of the world have I been matched and never yet been beaten. So take my counsel, and return again to your ship while you are able."

"Sir," said Sir Tristram, throwing up his head proudly, "I have been made a knight that I might come against you, and I have sworn never to leave you until you are conquered or I am dead, for I will fight to the death to rescue Cornwall from the old truage."

So they lowered their spears, and without more ado the fight began, and such a fight as that was never seen or known before in Cornwall. At the very first charge they met with such force that Sir Marhaus's spear wounded Sir Tristram in the side, and horses and riders were sent rolling on the ground; but soon they were on their feet again, and freeing themselves of their horses and spears, they pulled out their shields and fought with swords. With their swords they slashed and smote each other until the blood poured from them in streams, and so courageous were they, and determined not to give in, that they fought on and on until it seemed as though that struggle would last for ever. They hurled at each other with such fury that the blood ran down them in streams, dyeing the ground all round, yet neither prevailed in the least degree.

By and by, though, Sir Tristram, being the younger and the better-winded, proved the fresher, and drawing up all his strength for one last effort, he smote Sir Marhaus on the helm with such force that Sir Marhaus fell on his knees, and the sword cleaving through helmet and skull stuck so fast in the bone that Sir Tristram had to pull three times at it with all his might before he could get it free, and when it did come, a piece of the edge of the sword was left behind in the skull.

Overcome with pain and shame at his defeat, Sir Marhaus with a mighty effort raised himself to his feet, and without speaking one word, flung from him his sword and his shield, and staggered away to his ship.

"Ah!" mocked Sir Tristram, "why do you, a knight of the Table Round, flee from a knight so young and untried as I?" But Sir Marhaus made as though he did not hear the taunts, but hurrying on board his ship, set sail with all possible speed.

"Well, Sir Knight," laughed Tristram, "I thank you for your sword and shield; I will keep them wherever I go, and the shield I will carry to the day of my death." So Sir Marhaus returned to Ireland, and there, in spite of all that physicians could do, he soon died of his disgrace and his wounds; and after he was dead, the piece of sword-blade, which could not be extracted before, was found embedded in his brainpan.