Book 4 Summary

Satan gathers all the devils and monsters and demons of Hell, and urges them to join with him and do everything they can to defeat the Christian crusade. As the demons go out into the world, an aged sorcerer named Hidraort discovers that he cannot foresee who will win the battle over Jerusalem, but worries what will happen to him if the Christians win. As he considers what to do to prevent that from happening, Satan gives him an idea - send his beautiful niece Armida as a distraction. Hidraort thinks this is a good idea, and instructs Armida to focus her attention on Godfrey.

Armida journeys to the Christian camp, and as she makes her way to Godfrey's tent, the men of the army all become immediately attracted to her. This is particularly true of Eustace, Godfrey's younger brother, who escorts Armida...