When the King of Northgalis saw that Sir Tristram had a fall, then he remembered him how great deeds of arms Sir Tristram had done. Then he made ready many knights, for the custom and cry was such, that what knight were smitten down, and might not be horsed again by his fellows, outher by his own strength, that as that day he should be prisoner unto the party that had smitten him down. So came in the King of Northgalis, and he rode straight unto Sir Tristram; and when he came nigh him he alighted down suddenly and betook Sir Tristram his horse, and said thus: Noble knight, I know thee not of what country that thou art, but for the noble deeds that thou hast done this day take there my horse, and let me do as well I may; for, as Jesu me help, thou art better worthy to have mine horse than I myself. Gramercy, said Sir Tristram, and if I may I shall quite you: look that ye go not far from us, and as I suppose, I shall win you another horse. And therewith Sir Tristram mounted upon his horse, and there he met with King Arthur, and he gave him such a buffet upon the helm with his sword that King Arthur had no power to keep his saddle. And then Sir Tristram gave the King of Northgalis King Arthur’s horse: then was there great press about King Arthur for to horse him again; but Sir Palomides would not suffer King Arthur to be horsed again, but ever Sir Palomides smote on the right hand and on the left hand mightily as a noble knight. And this meanwhile Sir Tristram rode through the thickest of the press, and smote down knights on the right hand and on the left hand, and raced off helms, and so passed forth unto his pavilions, and left Sir Palomides on foot; and Sir Tristram changed his horse and disguised himself all in red, horse and harness. CHAPTER LXX. How Sir Tristram changed his harness and it was all red, and how he demeaned him, and how Sir Palomides slew Launcelot’s horse. And when the queen La Beale Isoud saw that Sir Tristram was unhorsed, and she wist not where he was, then she wept greatly. But Sir Tristram, when he was ready, came dashing lightly into the field, and then La Beale Isoud espied him. And so he did great deeds of arms; with one spear, that was great, Sir Tristram smote down five knights or ever he stint. Then Sir Launcelot espied him readily, that it was Sir Tristram, and then he repented him that he had smitten him down; and so Sir Launcelot went out of the press to repose him and lightly he came again. And now when Sir Tristram came into the press, through his great force he put Sir Palomides upon his horse, and Sir Gareth, and Sir Dinadan, and then they began to do marvellously; but Sir Palomides nor none of his two fellows knew not who had holpen them on horseback again. But ever Sir Tristram was nigh them and succoured them, and they [knew] not him, because he was changed into red armour: and all this while Sir Launcelot was away.