Now shall ye hear what was the cause that King Arthur came into the Forest Perilous, that was in North Wales, by the means of a lady. Her name was Annowre, and this lady came to King Arthur at Cardiff; and she by fair promise and fair behests made King Arthur to ride with her into that Forest Perilous; and she was a great sorceress; and many days she had loved King Arthur, and because she would have him to lie by her she came into that country. So when the king was gone with her many of his knights followed after King Arthur when they missed him, as Sir Launcelot, Brandiles, and many other; and when she had brought him to her tower she desired him to lie by her; and then the king remembered him of his lady, and would not lie by her for no craft that she could do. Then every day she would make him ride into that forest with his own knights, to the intent to have had King Arthur slain. For when this Lady Annowre saw that she might not have him at her will, then she laboured by false means to have destroyed King Arthur, and slain. - IX, XV