“To her my lord made answer that he was errant and in search of adventure, and upon this, the three damsels laughed, and she who had first spoken said, ‘An thou art in search of adventure, Sir Knight, happily I may be able to help thee to one that shall satisfy thee to thy heart’s content.’ “Unto this my master made reply ‘I prithee, fair damsel, tell me what that adventure may be so that I may presently assay it.’ “Thereupon this lady bade my master to take a certain path, and to follow the same for the distance of a league or a little more, and that he would then come to a bridge of stone that crossed a violent stream, and she assured him that there he might find adventure enough for to satisfy any man. “So my master and I wended thitherward as that damoiselle had directed, and, by and by, we came unto the bridge whereof she had spoken. And, lo! beyond the bridge was a lonesome castle with a tall straight tower, and before the castle was a wide and level lawn of well-trimmed grass. And immediately beyond the bridge was an apple-tree hung over with a multitude of shields. And midway upon the bridge was a single shield, entirely of black; and beside it hung a hammer of brass; and beneath the shield was written these words in letters of red: =Whoso Smiteth This Shield Doeth So At His Peril.= “Now, my master, Sir Myles, when he read those words went straightway to that shield and, seizing the hammer that hung beside it, he smote upon it a blow so that it rang like thunder. “Thereupon, as in answer, the portcullis of the castle was let fall, and there immediately came forth a knight, clad all from head to foot in sable armor. And his apparel and the trappings of his horse and all the appointments thereof were likewise entirely of sable. [Sidenote: The page telleth of the Sable Knight.] “Now when that Sable Knight perceived my master he came riding swiftly across the meadow and so to the other end of the bridge. And when he had come there he drew rein and saluted my master and cried out, ‘Sir Knight, I demand of thee why thou didst smite that shield. Now let me tell thee, because of thy boldness, I shall take away from thee thine own shield, and shall hang it upon yonder apple-tree, where thou beholdest all those other shields to be hanging.’ Unto this my master made reply. ‘That thou shalt not do unless thou mayst overcome me, as knight to knight.’ And thereupon, immediately, he dressed his shield and put himself into array for an assault at arms.