chunk: When Orlando learns the truth, he goes mad with despair and rampages through Europe and Africa destroying everything in his path. The English knight Astolfo journeys to Ethiopia on the hippogriff to find a cure for Orlando's madness.
  He flies up in Elijah's flaming chariot to the moon, where everything lost on earth is to be found, including Orlando's wits. He brings them back in a bottle and makes Orlando sniff them, thus restoring him to sanity. (At the same time Orlando falls out of love with Angelica, as the author explains that love is itself a form of insanity.)
  Orlando joins with Brandimart and Oliver to fight Agramante, Sobrino and Gradasso on the island of Lampedusa. There Orlando kills King Agramante.
  Another important plotline involves the love between the female Christian warrior Bradamante and the Saracen Ruggiero. They too have to endure many vicissitudes.