And Sir Launcelot rode through many strange countries, till by fortune he came to a fair castle; and as he passed beyond the castle he thought he heard two bells ring.  And then he perceived how a falcon came flying over his head, toward a high elm; and she had long lunys [Footnote:  LUNYS, the string with which the falcon is held.] about her feet, and she flew unto the elm to take her perch, and the lunys got entangled in the bough; and when she would have taken her flight, she hung by the legs fast, and Sir Launcelot saw how she hung, and beheld the fair falcon entangled, and he was sorry for her.  Then came a lady out of the castle and cried aloud, “O Launcelot, Launcelot, as thou art the flower of all knights, help me to get my hawk; for if my hawk be lost, my lord will slay me, he is so hasty.”  “What is your lord’s name?” said Sir Launcelot.  “His name is Sir Phelot, a knight that belongeth to the king of North Wales.”  “Well, fair lady, since ye know my name, and require me of knighthood to help you, I will do what I may to get your hawk; and yet in truth I am an ill climber, and the tree is passing high, and few boughs to help me.”  And therewith Sir Launcelot alighted and tied his horse to the tree, and prayed the lady to unarm him.  And when he was unarmed, he put off his jerkin, and with might and force he clomb up to the falcon, and tied the lunys to a rotten bough, and threw the hawk down with it; and the lady got the hawk in her hand.  Then suddenly there came out of the castle her husband, all armed, and with his naked sword in his hand, and said, “O Knight Launcelot, now have I got thee as I would,” and stood at the boll of the tree to slay him.  “Ah, lady!” said Sir Launcelot, “why have ye betrayed me?” “She hath done,” said Sir Phelot, “but as I commanded her; and therefore there is none other way but thine hour is come, and thou must die.”  “That were shame unto thee,” said Sir Launcelot; “thou an armed knight to slay a naked man by treason.”  “Thou gettest none other grace,” said Sir Phelot, “and therefore help thyself if thou canst.”  “Alas!” said Sir Launcelot, “that ever a knight should die weaponless!” And therewith he turned his eyes upward and downward; and over his head he saw a big bough leafless, and he brake it off from the trunk.  And then he came lower, and watched how his own horse stood; and suddenly he leapt on the further side of his horse from the knight.  Then Sir Phelot lashed at him eagerly, meaning to have slain him.  But Sir Launcelot put away the stroke, with the big bough, and smote Sir Phelot therewith on the side of the head, so that he fell down in a swoon to the ground.  Then Sir Launcelot took his sword out of his hand and struck his head from the body.  Then said the lady, “Alas! why hast thou slain my husband?” “I am not the cause,” said Sir Launcelot, “for with falsehood ye would have slain me, and now it is fallen on yourselves.”  Thereupon Sir Launcelot got all his armor, and put it upon him hastily, for fear of more resort, for the knight’s castle was so nigh.  And as soon as he might, he took his horse and departed, and thanked God he had escaped that adventure.