his companions that there he meant to stay, and they might go back to Ravenna.  So Nastagio pitched his camp, and there commenced to live after as fine and lordly a fashion as did ever any man, bidding divers of his friends from time to time to breakfast or sup with him, as he had been wont to do.  Now it so befell that about the beginning of May, the season being very fine, he fell a brooding on the cruelty of his mistress, and, that his meditations might be the less disturbed, he bade all his servants leave him, and sauntered slowly, wrapt in thought, as far as the pinewood.  Which he had threaded for a good half-mile, when, the fifth hour of the day being well-nigh past, yet he recking neither of food nor of aught else, ’twas as if he heard a woman wailing exceedingly and uttering most piercing shrieks:  whereat, the train of his sweet melancholy being broken, he raised his head to see what was toward, and wondered to find himself in the pinewood; and saw, moreover, before him running through a grove, close set with underwood and brambles, towards the place where he was, a damsel most comely, stark naked, her hair dishevelled, and her flesh all torn by the briers and brambles, who wept and cried piteously for mercy; and at her flanks he saw two mastiffs, exceeding great and fierce, that ran hard upon her track, and not seldom came up with her and bit her cruelly; and in the rear he saw, riding a black horse, a knight sadly accoutred, and very wrathful of mien, carrying a rapier in his hand, and with despiteful, blood-curdling words threatening her with death.  Whereat he was at once amazed and appalled, and then filled with compassion for the hapless lady, whereof was bred a desire to deliver her, if so he might, from such anguish and peril of death.  Wherefore, as he was unarmed, he ran and took in lieu of a cudgel a branch of a tree, with which he prepared to encounter the dogs and the knight.  Which the knight observing, called to him before he was come to close quarters, saying:—­“Hold off, Nastagio, leave the dogs and me alone to deal with this vile woman as she has deserved.”  And, even as he spoke, the dogs gripped the damsel so hard on either flank that they arrested her flight, and the knight, being come up, dismounted.  Whom Nastagio approached, saying:—­“I know not who thou art, that knowest me so well, but thus much I tell thee:  ’tis a gross outrage for an armed knight to go about to kill a naked woman, and set his dogs upon her as if she were a wild beast:  rest assured that I shall do all I can to protect her.”  Whereupon:—­“Nastagio,” replied the knight, “of the same city as thou was I, and thou wast yet a little lad when I, Messer Guido degli Anastagi by name, being far more enamoured of this damsel than thou art now of her of the Traversari, was by her haughtiness and cruelty brought to so woeful a pass that one day in a fit of despair I slew myself with this rapier which thou seest in my hand; for which cause I am condemned to the eternal pains.