Chapter 20 Summary

Joan now understands that Sergius has a split personality, or divided spirit, brought on largely by drinking too much wine. She adjusts his diet, makes him exercise and prods him into returning to his papal duties, much to Benedict's distress. Sergius handles business without resorting to corruption, upsetting the flow of Benedict's powerful business dealings.

Joan is sent to treat the famous courtesan, Marioza, who attempts to seduce her, knowing her as John of Anglicus, but the visit is a trap set to incriminate John. When Marioza pulls her to the bed, a dozen guards seize Joan and take her to face Benedict, who plans to prove her unchaste to his brother, Sergius. Benedict accuses Joan of harming Sergius and sends her to the dungeon.

In the wet, slimy dungeon, which contains the remains of prisoners, courageous Joan finds a dry spot and...