At evening-time they reached the gates of a very great castle, the largest in the world, and as they pulled up their horses before it, an enormous black giant came out of the gate, and looked at them very hard. They greeted him politely, and asked whose castle this was. "'Tis the castle of Garnard the Giant," he answered. They looked at each other with glee, for one of the appointed tasks was to obtain the sword of this very giant. Then they asked if he were used to treat strangers courteously. The black man shook his head. "No stranger ever entered that castle and came out alive," said he; "but ye have little chance of entrance, for no traveller is permitted to enter who knows no handicraft." The Seven Champions on hearing this rode on to the entrance gate, and called for admittance. The porter refused, however, saying that there was revelry within, and that no man set foot inside who did not bring his craft with him. But Kai declared that he was a burnisher of swords, and that no man could excel him at that trade, whereupon the porter went to report the matter to Garnard the Giant. Now, it so happened that Garnard had long wished for one who could brighten and clean his sword, so he bade the porter to admit him. So Kai entered alone, and was brought before the giant, who ordered his sword to be brought to him. Then Kai drew out his whetstone, and, first asking if he required it to glitter with a blue or a white lustre, he polished half the blade, and returned it to the giant, saying: "How is that?" The giant was highly pleased. "If the rest of my sword can be made to look like that," said he, "I shall value it above all my treasures. But how comes it that so clever a craftsman is wandering about alone without a companion?" "But I have a companion," said Kai--"a cunning craftsman, too, though not at this work. Send, I pray you, and admit him. And the porter shall know him by this sign: the head of his lance shall spring into the air, draw blood from the wind, and return to its place again." Then the porter opened the gate, and Bedivere marched into the hall, ready for what might befall, and stood watching Kai as he went on polishing the sword. This being done, to gain more time he asked for the sheath, and he fell to mending it and putting in new sides of wood. Meantime, as he had hoped, while all the porters and followers of the giant stood gaping round him, the young son of the herdsman had managed to climb over the castle wall, and to help his companions over also, whereupon they were able to make their way to hiding-places behind doors and pillars, from which they could see the company in the hall without being seen themselves.