With Cogliostro having been injured by Gui, Covenant has to both look after Cog and destory Gui. The Hellspawn gives Cog a potion to help heal him, and tells Cog to find Gareth and construct a cage in which to put the soon-to-be-recaptured necroplasm. With Gareth and Cog at his side, Covenant manages to kill Gui and, by chanting an incantation, captures the necroplasm in the cage Gareth has made. But something worse is about to be born from the drops of necroplasm that fell on the ground; it is a monster made up of the living dead. Covenant lets the monster consume him and, with the help of some magic learned from Dumas, he destroys the monster from the inside. And now there is a city to be cleansed.