The eighth circle, called Malebolge, or "Evil Pouches", is a vast stone funnel divided into ten concentric ditches, each one descending deeper than the last. Each ditch, or bolgia, punishes a different form of fraud: deliberate, malicious deception that twists the intellect. Dante and Virgil ride on the back of Geryon, a flying monster with the face of a just man and the body of a scorpion, to reach the floor. From here, every bolgia is a theater of ingenious torture.
In the first bolgia, panders and seducers are whipped naked by horned demons, running endlessly in opposite directions. In the second, flatterers lie submerged in human excrement, their fawning words now matched by the filth they produced. In the third, simoniacs (corrupt clerics who sold church offices) are shoved head-first into stone basins, their legs protruding and flaming. Pope Nicholas III, trapped here, mistakes Dante for Boniface VIII, revealing that Boniface will soon join him in even deeper torment.
In the fourth bolgia, diviners, astrologers, and magicians have their heads twisted backward, their faces turned to their buttocks, so that they can only see behind them. They wept, and their tears dripped down over their buttocks, a grotesque inversion of their presumption to see the future. In the fifth bolgia, barrators (corrupt politicians) are submerged in boiling pitch, guarded by demons with grappling hooks, who tear at them when they surface. Dante witnesses a savage scene of deception among the demons themselves.
In the sixth bolgia, hypocrites parade in gilded, lead-lined cloaks that appear golden outside but are crushing inside, their external piety concealing the weight of their falsehood. Among them, Dante sees Caiaphas, the high priest who condemned Christ, crucified on the ground, trampled by all. In the seventh bolgia, thieves are transformed into serpents, and their human forms burn and reassemble in a never-ending cycle of theft and metamorphosis, a dazzling, nightmarish spectacle of identity dissolving.
The eighth bolgia holds the fraudulent counselors, who gave evil advice, including Ulysses, who tells his famous speech of the "mad flight" into the unknown, sailing beyond the Pillars of Hercules only to be punished by a whirlwind. The ninth bolgia is for sowers of discord, cut, mutilated, their limbs hacked off as they walk. The tenth bolgia is for falsifiers, alchemists, counterfeiters, perjurers, who suffer from leprosy, rabies, and madness. Dante meets Adam of Brescia and Sinon, who throw insults at each other, a grotesque quarrel of liars.
The Malebolge is the most elaborate, inventive, and often horrific section of Hell. Dante spares no detail, each fraud receives its mirror punishment. He shows little pity here; these are the sins of the intellect corrupted, and justice is surgical, precise, and relentless. Virgil guides him through the last pouch, and they prepare to descend into the final circle.