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|Far Harbor side quest: What Atom Requires|
|Help the Children of Atom|
|(Optional) Assist the Grand Zealot Richter.||(Optional) Show the Mother icon to the High Confessor Tektus.||(Optional) Help the High Confessor.||(Optional) Help Zealot Ware.||(Optional) Help Sister Mai.|
|Leads to: The Heretic||Leads to: Witch Hunt||Leads to: The Trial of Brother Devin||Leads to: Ablutions|
|Reward: 300 XP|
What Atom Requires is an overarching quest that has no actual target itself but serves as some sort of checklist for a number of different Children of Atom side quests instead.
- (Optional) Show the icon to the High Confessor completes after talking to Tektus about the icon that is found during Visions in the Fog.
- (Optional) Assist the Grand Zealot starts the quest The Heretic.
- (Optional) Help the High Confessor starts the quest Witch Hunt.
- (Optional) Help Zealot Ware starts the quest The Trial of Brother Devin.
- (Optional) Help Sister Mai starts the quest Ablutions.
Finishing any of these quests also marks the respective optional task of What Atom Requires as complete. Once all active optional tasks are completed, What Atom Requires will be considered finished as well, resulting in gaining the appropriate reward in XP.
Note that only the first three tasks are given by default once the quest is started; the prompts to help Mai and Ware appear upon overhearing ambient chatter of random Children of Atom in the Nucleus, or simply by talking to the quest givers. Both related quests can be also done after What Atom Requires has been finished.