1. Virgil's Taming of Plutus and Capaneus, and the Pilgrim's Changing Perceptions -- 2. The Blindness of Virgil in Inferno 8-9, Purgatorio 15-16, and Purgatorio 22-23 -- 3. Encounters with the Heavenly Beings in Hell and Purgatory -- 4. The Eclipse of Virgil and the Ascent of Mary after her Son -- 5. Virgil, John the Baptist, and the Downward Journey "di giro in giro"