Canto XIII. The travellers now enter a wild forest, which occupies the second division of the seventh circle, where Virgil declares each barren thorn-tree is inhabited by the soul of a suicide. In the gnarly branches perch the Harpies, whose uncouth lamentations echo through the air, and who greedily devour every leaf that sprouts. Appalled by the sighs and wailings around him, Dante questions Virgil, who directs him to break off a twig. No sooner has he done so than he sees blood trickle from the break and hears a voice reproach him for his cruelty. Thus Dante learns that the inmate of this tree was once private secretary to Frederick II, and that, having fallen into unmerited disgrace, he basely took refuge in suicide. This victim's words have barely died away when the blast of a horn is heard, and two naked forms are seen fleeing madly before a huntsman and a pack of mastiffs. The latter, pouncing upon one victim, tears him to pieces, while Dante shudders at this sight. Meantime Virgil explains that the culprit was a young spendthrift, and that huntsman and hounds represent the creditors whose pursuit he tried to escape by killing himself.

Canto XIV. Leaving this ghastly forest, Dante is led to the third division of this circle, a region of burning sands, where hosts of naked souls lie on the ground, blistered and scathed by the rain of fire and vainly trying to lessen their pain by thrashing themselves with their hands. One figure, the mightiest among them, alone seems indifferent to the burning rain, and, when Dante inquires who this may be, Virgil returns it is Capaneus (one of the seven kings who besieged Thèbes[17]), who, in his indomitable pride, taunted Jupiter and was slain by his thunder-bolt.

Treading warily to avoid the burning sands, Virgil and his disciple cross a ruddy brook which flows straight down from Mount Ida in Crete, where it rises at the foot of a statue whose face is turned toward Rome. Virgil explains that the waters of this stream are formed by the tears of the unhappy, which are plentiful enough to feed the four mighty rivers of Hades! While following the banks of this torrent, Dante questions why they have not yet encountered the other two rivers which fall into the pit; and discovers that, although they have been travelling in a circle, they have not by far completed one whole round of the gigantic funnel, but have stepped down from one ledge to the other after walking only a short distance around each circumference.

Canto XV. The high banks of the stream of tears protect our travellers from the burning sands and the rain of fire, until they encounter a procession of souls, each one of which stares fixedly at them. One of these recognizes Dante, who in his turn is amazed to find there his old school-master Ser Brunetto, whom he accompanies on his way, after he learns he and his fellow-sufferers are not allowed to stop, under penalty of lying a hundred years without fanning themselves beneath the rain of fire. Walking by his former pupil's side, Brunetto in his turn questions Dante and learns how and why he has come down here, ere he predicts that in spite of persecutions the poet will ultimately attain great fame.

Canto XVI. Reaching a spot where the stream they are following suddenly thunders down into the eighth circle, Dante beholds three spirits running toward him, whirling round one another "in one restless wheel," while loudly exclaiming his garb denotes he is their fellow countryman! Gazing into their fire-scarred faces, Dante learns these are three powerful Guelfs; and when they crave tidings of their native city, he tells them all that has recently occurred there. Before vanishing these spirits piteously implore him to speak of them to mortals on his return to earth, and leave Dante and Virgil to follow the stream to the verge of the abyss. There Virgil loosens the rope knotted around Dante's waist, and, casting one end of it down into the abyss, intimates that what he is awaiting will soon appear. A moment later a monster rises from the depths, climbing hand over hand up the rope.

Canto XVII. This monster is Geryon, the personification of fraud, and therefore a mixture of man, beast, and serpent. When he reaches the upper ledge, Virgil bargains with him to carry them down, while Dante converses with neighboring sorrowful souls, who are perched on the top of the cliff and hide their faces in their hands. All these spirits wear purses around their necks, because as usurers while on earth they lived on ill-gotten gains. Not daring to keep his guide waiting, Dante leaves these sinners, and hurries back just as Virgil is taking his seat on the monster's back. Grasping the hand stretched out to him, Dante then timorously mounts beside his guide.

"As one, who hath an ague fit so near,
His nails already are turn'd blue, and he
Quivers all o'er, if he but eye the shade;
Such was my cheer at hearing of his words.
But shame soon interposed her threat, who makes
The servant bold in presence of his lord.
I settled me upon those shoulders huge,
And would have said, but that the words to aid
My purpose came not, 'Look thou clasp me firm.'"

Then, bidding Dante hold fast so as not to fall, Virgil gives the signal for departure. Wheeling slowly, Geryon flies downward, moderating his speed so as not to unseat his passengers. Comparing his sensations to those of Phaeton falling from the sun-chariot, or to Icarus' horror when he dropped into the sea, Dante describes how, as they circled down on the beast's back, he caught fleeting glimpses of fiery pools and was almost deafened by the rising chorus of wails. With a falcon-like swoop Geryon finally alights on the next level, and, having deposited his passengers at the foot of a splintered rock, darts away like an arrow from a taut bow-string.

Canto XVIII. The eighth circle, called Malebolge (Evil Pits), is divided into ten gulfs, between which rocky arches form bridge-like passages. This whole region is of stone and ice, and from the pit in the centre continually rise horrid exhalations. Among the unfortunates incessantly lashed by horned demons in the first gulf, Dante perceives one who was a notorious pander on earth and who is justly suffering the penalty of his crimes. Later on, watching a train of culprits driven by other demons, Dante recognizes among them Jason, who secured the Golden Fleece, thanks to Medea, but proved faithless toward her in the end.

Crossing to the second division, Dante beholds sinners buried in dung, in punishment for having led astray their fellow-creatures by flattery. One of them,—whom the poet recognizes,—emerging from his filthy bath, sadly confesses, "Me thus low down my flatteries have sunk, wherewith I ne'er enough could glut my tongue." In this place Dante also notes the harlot Thais, expiating her sins, with other notorious seducers and flatterers.