Once this quest is activated (by doing Drink from the Chalice of Corruption), you get -2 health degeneration from the effect of the Chalice of Corruption. This effect will continue until Brother Tosai removes it at the completion of this quest. You will be asked to follow him into the Undercity, whereupon he will lead you further into the sewers, claiming to introduce you to the true masters. When you reach the area, Brother Tosai will reveal his true intentions and offer you up as a sacrifice to the Afflicted, which the quest objectives refer to as Afflicted Am Fah. You will be attacked by several waves of Afflicted, which will approach from two directions: the direction you came from, and directly opposite. The waves usually come from alternate directions. Once you've taken all the waves