So Sir Launcelot rode many wild ways, throughout marches and many wild ways. And as he rode in a valley he saw a knight chasing a lady, with a naked sword, to have slain her. And by fortune as this knight should have slain this lady, she cried on Sir Launcelot and prayed him to rescue her. When Sir Launcelot saw that mischief, he took his horse and rode between them, saying, Knight, fie for shame, why wilt thou slay this lady? thou dost shame unto thee and all knights. What hast thou to do betwixt me and my wife? said the knight. I will slay her maugre thy head. That shall ye not, said Sir Launcelot, for rather we two will have ado together. Sir Launcelot, said the knight, thou dost not thy part, for this lady hath betrayed me. It is not so, said the lady, truly he saith wrong on me. And for because I love and cherish my cousin germain, he is jealous betwixt him and me; and as I shall answer to God there was never sin betwixt us. But, sir, said the lady, as thou art called the worshipfullest knight of the world, I require thee of true knighthood, keep me and save me. For whatsomever ye say he will slay me, for he is without mercy. Have ye no doubt, said Launcelot, it shall not lie in his power. Sir, said the knight, in your sight I will be ruled as ye will have me.