Irish vision of a wicked man of Bohemia, Merlino Malignois who listens to a sermon that influences his mind. However, he is on his way to a tryst with a comrade when they meet a parade of nobles which they join. They proceed with them to the castle of an earl. When they enter this castle, where they had expected to find delight, they find hell - and Merlino’s comrade reveals himself to be the Spirit of Knowledge. This vision, primarily of hell, describes the seven deadly sins as punished in the offending bodily parts. Various animals, such as snakes and adders are part of the tortures, which are quite marvelously described. For instance, the Lake of Pains is said to be horrible because “one single drop of the water of the lake would destroy all the creatures on the surface of the earth by the bitterness of its chill.” There is ongoing dialogue between Merlino and the spirit on the nature of hell, its punishments, Lucifer, Beelzebub, repentance and mercy. There are very brief glimpses of purgatory and heaven, followed by Merlino’s return to this world and his repentance, upon which he is shown the mercy of God.