Book XVIII - Chapter VIII - How the truth was known by the Maiden of the Lake, and of divers other matters.
AND so it befell that the damosel of the lake, her name was Nimue, the which wedded the good knight Sir Pelleas, and so she came to the court; for ever she did great goodness unto King Arthur and to all his knights through her sorcery and enchantments. And so when she heard how the queen was an-angered for the death of Sir Patrise, then she told it openly that she was never guilty; and there she disclosed by whom it was done, and named him, Sir Pinel; and for what cause he did it, there it was openly disclosed; and so the queen was excused, and the knight Pinel fled into his country. Then was it openly known that Sir Pinel enpoisoned the apples at the feast to that intent to have destroyed Sir Gawaine, because Sir Gawaine and his brethren destroyed Sir Lamorak de Galis, to the which Sir Pinel was cousin unto. Then was Sir Patrise buried in the church of Westminster in a tomb, and thereupon was written: Here lieth Sir Patrise of Ireland, slain by Sir Pinel le Savage, that enpoisoned apples to have slain Sir Gawaine, and by misfortune Sir Patrise ate one of those apples, and then suddenly he brast. Also there was written upon the tomb that Queen Guenever was appealed of treason of the death of Sir Patrise, by Sir Mador de la Porte; and there was made mention how Sir Launcelot fought with him for Queen Guenever, and overcame him in plain battle. All this was written upon the tomb of Sir Patrise in excusing of the queen. And then Sir Mador sued daily and long, to have the queen's good grace; and so by the means of Sir Launcelot he caused him to stand in the queen's good grace, and all was forgiven
Thus it passed on till our Lady Day, Assumption. Within a fifteen days of that feast the king let cry a great jousts and a tournament that should be at that day at Camelot, that is Winchester; and the king let cry that he and the King of Scots would joust against all that would come against them. And when this cry was made, thither came many knights. So there came thither the King of Northgalis, and King Anguish of Ireland, and the King with the Hundred Knights, and Galahad, the haut prince, and the King of Northumberland, and many other noble dukes and earls of divers countries. So King Arthur made him ready to depart to these jousts, and would have had the queen with him, but at that time she would not, she said, for she was sick and might not ride at that time. That me repenteth, said the king, for this seven year ye saw not such a noble fellowship together except at Whitsuntide when Galahad departed from the court. Truly, said the queen to the king, ye must hold me excused, I may not be there, and that me repenteth. And many deemed the queen would not be there because of Sir Launcelot du Lake, for Sir Launcelot would not ride with the king, for he said that he was not whole of the wound the which Sir Mador had given him; wherefore the king was heavy and passing wroth. And so he departed toward Winchester with his fellowship; and so by the way the king lodged in a town called Astolat, that is now in English called Guildford, and there the king lay in the castle.
So when the king was departed the queen called Sir Launcelot to her, and said thus: Sir Launcelot, ye are greatly to blame thus to hold you behind my lord; what, trow ye, what will your enemies and mine say and deem? nought else but, See how Sir Launcelot holdeth him ever behind the king, and so doth the queen, for that they would have their pleasure together. And thus will they say, said the queen to Sir Launcelot, have ye no doubt thereof.