Thereat Sir Percival marvelled greatly, for he well knew who that knight should be; and so, taking his leave of the monk, departed. Then he rode on till noon, and came into a valley where he met twenty men-at-arms bearing a dead knight on a bier. And they cried to him, "Whence comest thou?" "From King Arthur's court," he answered. Then they all cried together, "Slay him," and set upon him. But he smote down the first man to the ground, and his horse upon him; whereat seven of them all at once assailed him, and others slew his horse. Thus he had been either taken or slain, but by good chance Sir Galahad was passing by that way, who, seeing twenty men attacking one, cried, "Slay him not," and rushed upon them; and, as fast as his horse could drive, he encountered with the foremost man, and smote him down. Then, his spear being broken, he drew forth his sword and struck out on the right hand and on the left, at each blow smiting down a man, till the remainder fled, and he pursued them. Then Sir Percival, knowing that it was Sir Galahad, would fain have overtaken him, but could not, for his horse was slain. Yet followed he on foot as fast as he could go; and as he went there met him a yeoman riding on a palfrey, and leading in his hand a great black steed. So Sir Percival prayed him to lend him the steed, that he might overtake Sir Galahad. But he replied, "That can I not do, fair sir, for the horse is my master's, and should I lend it he would slay me." So he departed, and Sir Percival sat down beneath a tree in heaviness of heart. And as he sat, anon a knight went riding past on the black steed which the yeoman had led. And presently after came the yeoman back in haste, and asked Sir Percival if he had seen a knight riding his horse. "Yea," said Sir Percival. "Alas," said the yeoman, "he hath reft him from me by strength, and my master will slay me." Then he besought Sir Percival to take his hackney and follow, and get back his steed. So he rode quickly, and overtook the knight, and cried, "Knight, turn again." Whereat he turned and set his spear, and smote Sir Percival's hackney in the breast, so that it fell dead, and then went on his way. Then cried Sir Percival after him, "Turn now, false knight, and fight with me on foot;" but he would not, and rode out of sight. Then was Sir Percival passing wroth and heavy of heart, and lay down to rest beneath a tree, and slept till midnight. When he awoke he saw a woman standing by him, who said to him right fiercely, "Sir Percival, what doest thou here?" "I do neither good nor evil," said he. "If thou wilt promise me," said she, "to do my will whenever I shall ask thee, I will bring thee here a horse that will bear thee wheresoever thou desirest."