"Lady," quoth Guingamor, "I may not believe that thou sayest sooth, but if the thing be so then I swear to thee that I will straightway return hither."
And she answered, "I charge thee when thou hast passed the river to return to thine own land, that thou neither eat nor drink, however great may be thy need, till thou return once more to this land, otherwise art thou undone."
Then she bade them bring his steed, and the great boar, and the brachet which she gave him in leash, and Guingamor took the boar's head, more might he not carry, and mounted his steed and went forth. His lady rode with him to the river, and had him put across in a boat, then she commended him to God and left him.
The knight rode forward and wandered till midday in the forest, nor might he find a way out. 'Twas all so ill-looking and overgrown that he might know the way no longer. Then afar to the left he heard the axe of a wood-cutter, who had made a fire and burnt charcoal, and he spurred towards the sound, and gave the man greeting, and asked where his uncle the king abode, and at what castle he should seek for him.
But the charcoal-burner answered: "Of a faith, sire, I know naught; the king of whom thou speakest 'tis over three hundred years since he died, he and all his folk, and the castles of which thou askest have long been in ruins. There are certain of the old folk who full oft tell tales of that king, and of his nephew who was a wondrous valiant knight, how he went one day to hunt within this forest and was seen no more." Guingamor heard what he said, and a great pity seized him for the king his uncle, whom he had thus lost, and he spake to the charcoal-burner: "Hearken what I say to thee, for I will tell thee what has befallen me. I am he who went hunting in this forest, and I thought to return and bring with me the white boar." Then he began to tell of the palace he had found, and the maiden whom he had met, how she had lodged him royally for two days; "and on the third did I depart, and she gave me my dog and the boar." Then he gave him the boar's head and bade him keep it well till he returned to his home, and might tell the folk of the land how he had seen and spoken with Guingamor the king's nephew.
The poor man thanked him, and Guingamor bade him farewell, and turned him back and left him. 'Twas already past nones and the day drew towards vesper-tide; so great a hunger seized the knight that he became well-nigh ravening; by the roadside as he went there grew a wild apple tree, the boughs well laden with fruit; he drew near and plucked three and ate them. He did ill in that he forgat his lady's command, for even as he tasted the fruit he was aged and undone, so feeble of limb that he fell from his steed, and might move neither hand nor foot; when he might speak he began in a feeble voice to bemoan himself.
The charcoal-burner had followed him and seen what had chanced, and it seemed to him that he might scarce live till the evening. But as he would go to his aid there came riding two fair maidens, well and richly dressed, who dismounted beside Guingamor, and blamed him much, and reproached him for that he had so ill kept his lady's command. Gently they lifted the knight and set him on his horse, and led him to the river, where they placed him, his steed, and his dog, in a boat and rowed them over.
The peasant turned him back, and that night he sought his home bearing with him the boar's head; far and wide he told the tale, and affirmed it by his oath. The head he gave unto the king, who caused it to be shown at many a feast; and that none might forget the adventure the king bade make a lay which bare the name of Guingamor—and so do the Breton call it.