Grants 100 XP and the O Daughter of Babylon achievement/trophy upon completion.
If after Gathering Storms, the player character instead decides to side with Daniel they will be issued the Flight from Zion quest and awarded the May my Hand Forget its Skill achievement on its completion.
Behind the scenes
This achievement/trophy references Psalm 137:8 of the Bible: "O Daughter of Babylon, who art to be destroyed, happy shall he be that rewardeth thee as thou hast served us." (King James Version). Joshua Graham recites this quote.