Next came Sir Bedivere, close brother-in-arms to Kai, the swiftest runner, save Arthur himself and one other, in all the land. One-handed was he, yet he could give more wounds in battle than any three warriors together. Then followed Uriel, who understood the speech of all men and all beasts; and Gawain, who was called the "Hawk of May," because he never returned from any undertaking until it had been performed by him. The fifth to answer Arthur's call was Merlin, a master of magic, who knew how to put a spell upon the knights that would render them invisible. Last came Peregrine the Guide, who knew how to find the way as well in a strange country as in his own. "Go forth, O Chieftains," said the King, "and follow the Prince upon this quest; and great shall be the fame of your adventure." So the Seven Champions rode forth through the great gates of the palace, and set out with high hearts to seek for Olwen, daughter of Thornogre Thistlehair, Chief of the Giants. II. How the Seven Champions found Olwen of the White Footprints Onward and onward rode Kilhugh and the six knights until they came at length to a vast plain, stretching in every direction farther than the eye could reach. Over it they rode, and at length perceived through the misty air the towers and battlements of a great castle far away on the borders of the moorland. They rode towards this castle all day long, but yet they never seemed to get any nearer. All the next day they went on riding, and still the castle seemed as far away as ever. The third evening brought them no nearer. At length Sir Gawain exclaimed: "This must be Fleeting Castle, which can always be seen from a distance, but can never be actually reached." Now, on the fourth day, to their surprise, the castle no longer advanced before them as they approached, and soon they were able to draw rein before it, and to wonder in amazement at the thousands of sheep which fed upon the plains surrounding its massive walls. Near by sat the shepherd with his dog, tending this enormous flock. The shepherd was a giant in size, and was dressed in the skins of wild beasts. The dog was larger than a full-grown horse; he had the shaggiest of coats, and, though an excellent sheep-dog, was destructive enough elsewhere, for with his fiery breath he would burn up all the dry bushes and dead trees in that region. The Champions looked somewhat doubtfully at this great animal, and Kai suggested to Uriel that as he knew all tongues, he had better go and speak to the shepherd. "Not I," answered Uriel. "I agreed when we set out to go just as far as thou, and no farther." But Merlin came to them, and explained that he had cast a spell over the dog, so that he could not hurt them. So Kilhugh and Kai and Uriel went together to the shepherd, and asked him very politely who owned that countless flock of sheep, and who lived in yonder castle.