But when he saw he was discovered, he pushed with haste through all the crowd, and cried to his dwarf, "Boy, thou hast beguiled me foully in keeping my ring; give it me again, that I may be hidden." And as soon as he had put it on, his armor changed again, and no man knew where he had gone. Then he passed forth from the field; but Sir Gawain, his brother, rode after him.
And when Sir Gareth had ridden far into the forest, he took off his ring, and sent it back by the dwarf to the Lady Lyones, praying her to be true and faithful to him while he was away.
Then rode Sir Gareth long through the forest, till night fell, and coming to a castle he went up to the gate, and prayed the porter to let him in. But churlishly he answered "that he should not lodge there." Then said Sir Gareth, "Tell thy lord and lady that I am a knight of King Arthur's court, and for his sake I pray their shelter." With that the porter went to the duchess who owned the castle. "Let him in straightway," cried she; "for the king's sake he shall not be harborless!" and went down to receive him. When Sir Gareth saw her coming, he saluted her, and said, "Fair lady, I pray you give me shelter for this night, and if there be here any champion or giant with whom I must needs fight, spare me till to-morrow, when I and my horse shall have rested, for we are full weary." "Sir knight," she said, "thou speakest boldly; for the lord of this castle is a foe to King Arthur and his court, and if thou wilt rest here to-night thou must agree, that wheresoever thou mayest meet my lord, thou must yield to him as a prisoner." "What is thy lord's name, lady?" said Sir Gareth. "The Duke de la Rowse," said she. "I will promise thee," said he, "to yield to him, if he promise to do me no harm; but if he refuse, I will release myself with my sword and spear."
"It is well," said the duchess; and commanded the drawbridge to be let down. So he rode into the hall and alighted. And when he had taken off his armor, the duchess and her ladies made him passing good cheer. And after supper his bed was made in the hall, and there he rested that night. On the morrow he rose and heard mass, and having broken his fast, took his leave and departed.
And as he rode past a certain mountain there met him a knight named Sir Bendelaine, and cried unto him, "Thou shalt not pass unless thou joust with me or be my prisoner!" "Then will we joust," replied Sir Gareth. So they let their horses run at full speed, and Sir Gareth smote Sir Bendelaine through his body so sorely that he scarcely reached his castle ere he fell dead. And as Sir Gareth presently came by the castle, Sir Bendelaine's knights and servants rode out to revenge their lord. And twenty of them fell on him at once, although his spear was broken. But drawing his sword he put his shield before him. And though they brake their spears upon him, one and all, and sorely pressed on him, yet ever he defended himself like a noble knight. Anon, finding they could not overcome him, they agreed to slay his horse; and having killed it with their spears, they set upon Sir Gareth as he fought on foot. But every one he struck he slew, and drave at them with fearful blows, till he had slain them all but four, who fled. Then taking the horse of one of those that lay there dead, he rode upon his way.
Anon he came to another castle and heard from within a sound as of many women moaning and weeping. Then said he to a page who stood without, "What noise is this I hear?" "Sir knight," said he, "there be within thirty ladies, the widows of thirty knights who have been slain by the lord of this castle. He is called the Brown Knight without pity, and is the most perilous knight living, wherefore I warn thee to flee." "That will I never do," said Sir Gareth, "for I fear him not." Then the page saw the Brown Knight coming and said to Gareth, "Lo! my lord is near."
So both knights made them ready and galloped their horses towards each other, and the Brown Knight brake his spear upon Sir Gareth's shield; but Sir Gareth smote him through the body so that he fell dead. At that he rode into the castle and told the ladies he had slain their foe. Then were they right glad of heart and made him all the cheer they could, and thanked him out of measure. But on the morrow as he went to mass he found the ladies weeping in the chapel upon divers tombs that were there. And he knew that in those tombs their husbands lay. Then he bade them be comforted, and with noble and high words he desired and prayed them all to be at Arthur's court on the next Feast of Pentecost.
So he departed and rode past a mountain where was a goodly knight waiting, who said to him, "Abide, Sir knight, and joust with me!" "How are ye named?" said Sir Gareth. "I am the Duke de la Rowse," answered he. "In good sooth," then said Sir Gareth, "not long ago I lodged within your castle, and there promised I would yield to you whenever we might meet." "Art thou that proud knight," said the duke, "who was ready to fight with me? Guard thyself therefore and make ready." So they ran together, and Sir Gareth smote the duke from his horse. Then they alighted and drew their swords, and fought full sorely for the space of an hour; and at the last Sir Gareth smote the duke to the earth and would have slain him, but he yielded. "Then must ye go," said Sir Gareth, "to my lord King Arthur at the next Feast of Pentecost and say that I, Sir Gareth, sent ye." "As ye will be it," said the duke; and gave him up his shield for pledge.
And as Sir Gareth rode alone he saw an armed knight coming towards him. And putting the duke's shield before him he rode fast to tilt with him; and so they ran together as it had been thunder, and brake their spears upon each other. Then fought they fiercely with their swords, and lashed together with such mighty strokes that blood ran to the ground on every side. And after they had fought together for two hours and more, it chanced the damsel Linet passed that way; and when she saw them, she cried out, "Sir Gawain and Sir Gareth, leave your fighting, for ye are brethren!" At that they threw away their shields and swords, and took each other in their arms, and wept a great while ere they could speak. And each gave to the other the honor of the battle, and there was many a kind word between them. Then said Sir Gawain, "O my brother, for your sake have I had great sorrow and labor! But truly I would honor you though ye were not my brother, for ye have done great worship to King Arthur and his court, and sent more knights to him than any of the Table Round, except Sir Lancelot."
Then the damsel Linet staunched their wounds, and their horses being weary she rode her palfrey to King Arthur and told him of this strange adventure. When she had told her tidings, the king himself mounted his horse and bade all come with him to meet them. So a great company of lords and ladies went forth to meet the brothers. And when King Arthur saw them he would have spoken hearty words, but for gladness he could not. And both Sir Gawain and Sir Gareth fell down at their uncle's knees and did him homage, and there was passing great joy and gladness among them all.