So Sir Tristram departed over sea, and arrived in Wales. As he rode there through the Forest Perilous, a lady in great distress met him, that said: "O my lord, come with me, and that in all the haste ye may, for ye shall see the most honourable knight of the world hard bestead, and he is none other than the noble King Arthur himself." "God defend," said Sir Tristram, "that ever he should be in such distress. I am ready to help him if I may." So they rode at a great pace, till they saw a knight, that was King Arthur, on foot fighting with two knights, and anon the one knight was smitten down, and they unlaced his helm to slay him. Therewithal came Sir Tristram with all his might, and smote the two traitors so that they fell dead. Then he horsed King Arthur, and as they rode forth together, the King thanked heartily Sir Tristram and desired to wit his name. He would not tell him, but said that he was a poor knight adventurous. So he bare King Arthur fellowship, till he met with some of his knights. Then departed Sir Tristram, and rode straight toward Camelot. Then was he ware of a seemly knight riding against him with a covered shield. They dressed their shields and spears, and came together with all the mights of their horses. They met so fiercely that both horses and knights fell to the earth. As fast as they were able they then gat free from their horses, and put their shields before them; and they strake together with bright swords, like men of might, and either wounded other wonderly sore, so that the blood ran out upon the grass. Thus they two fought the space of four hours. Never one would speak to other one word, and of their harness they hewed off many pieces. Then at the last spake the one with the covered shield; "Knight, thou fightest wonderly well as ever I saw knight; therefore if it please you tell me your name." "Sir," said Sir Tristram, "that is me loath to tell any man my name." "Truly," said the other, "if I was requested, I was never loath to tell my name. I am Sir Launcelot of the Lake." "Alas," said Sir Tristram, "what have I done, for ye are the man in the world that I love best." "Fair knight," said Sir Launcelot, "tell me now your name." "Truly," said he, "my name is Sir Tristram of Lyonesse." "Oh," said Sir Launcelot, "what adventure is befallen me!" Therewith Sir Launcelot kneeled adown, and yielded him up his sword. And therewithal Sir Tristram kneeled adown, and yielded him up his sword. So either gave other the victory. Thereupon they both forthwithal went to a stone, and sat down upon it, and took off their helms to cool themselves. Then after a while they took their helms and rode together to Camelot.