They next set out to hunt the Boar-headed Branch-breaker; but soon they heard that no man could pluck out the tusk from the living head of this terrible animal but Odgar, King of Ireland.

With some difficulty they persuaded him to accompany them; but at length the huntsmen gathered together, with him at their head, and a great hunt for the boar began. The swiftest dogs could not bring the animal to bay, until at length Arthur's own hound, Cavall, brought him to the ground, and Odgar rushed up to pull out the tusk; but he would have been killed, had not Kai been there to strike the Branch-breaker down directly Odgar had plucked it out.

There yet remained to seek out the jewelled scissors and comb that were between the ears of Burstingboar, the Wide-Waster.

Now, this Burstingboar had laid waste a great part of Ireland, so that all men went in terror of him; and, that the heroes might not be misled about the curious things said to lie between his ears, Merlin was sent to Ireland to seek him out and see if it were as the giant had said.

So Merlin tracked Burstingboar to his den on Cold Blast Ridge, and, having changed himself into a bird, flew down into a thicket close by. From thence he could see the creature lying on the ground, with his seven young boars at his side, and between his ears twinkled the jewels of the scissors and the comb. Then Merlin thought it was a sad thing that the heroes should lose their lives for such things, and determined to try to carry them off himself. So he flew upon the head of Burstingboar, and tried to snatch up the razor; but all he really got was a great bristle. Then Burstingboar rose up in a great rage, foaming at the mouth. He could see no one; but a fleck of the poisonous foam fell upon Merlin, and hurt him so that he never quite recovered.

When he heard this news, Arthur gathered together such a number of brave knights and squires that the Irish feared he was about to attack their land, but when he told them he had come to deliver them from the dreaded Burstingboar, their joy knew no bounds. And so it was arranged that those Irish who had joined his host should first attack the boar; then, if he still lived, he should be attacked by Arthur's own knights; and if by that time he were not slain, Arthur should himself hunt him on the third day.

But the first day and the second saw the boar triumphant; and when Arthur took his turn he fought for nine days and nights without even wounding the creature or one of his cubs. At the end of that time all the knights besought Arthur to tell them the secret about the boar, which all this time he had kept.

Then Arthur told them that the creature had once been a king, but for his sins and his great pride had been changed into a boar. And he sent Uriel to confer with him concerning the jewelled comb and scissors. But when Uriel spoke gently to him, bidding him deliver these up at the request of Arthur, the boar grew very fierce, and said: "Not only shall Arthur never even see these jewels, but I with my young ones will go forthwith and harry the land of Arthur, doing all the hurt to it that we can."

When they heard this news all the host arose at dawn to prevent them leaving Ireland; but when they looked towards the sea, there was the boar with his young ones swimming far away to the coast of Britain. And before the King could cross the Irish Sea, the boars had landed at Milford Haven, and destroyed every living thing in the neighbourhood.

Then terror fell on all the land, and eagerly men looked for Arthur to come to their aid, who, when he arrived, set out at once with a crowd of mighty huntsmen to kill the beasts. But it was exceeding hard to find the boar, though his tracks were well marked by the ruin of flocks and men; and when they did come up with him, he slew with his mighty tusks a full half-dozen of Arthur's followers, and dashed off to a mountain-top, where they lost all sign of him: neither man nor dog could tell whither he had disappeared.