Witch Hunt

Witch Hunt is a quest in the Fallout 4 add-on Far Harbor.

Synopsis
High Confessor Tektus requires the aid of the Sole Survivor in rooting out heresy within the community. The accused? Sister Aubert.

Walkthrough

 * 1) Read the High Confessor's Note.
 * 2) Locate Sister Aubert's bunk. It's on the lower reactor level, in an inset on the walkway. Edgar's Note is tucked under the mattress. Read it.
 * 3) Optional: Talk to Sister Aubert. With a moderate persuasion effort, she will let it go that she dislikes Tektus.
 * 4) Find the locker key. It's behind the bench inside the locker room in the entrance corridor to the Nucleus.
 * 5) Open the locker in the submarine, in the small storeroom at the starboard side. Read Aubert's Note.
 * 6) Optional: Confront Aubert. It's possible to just hand her the note and then to lie to the Confessor, tell her to run, or blackmail her.
 * 7) Return to the High Confessor. At this point:
 * 8) Turn Aubert in and receive the Inquisitor's Cowl.
 * 9) Lie about not finding anything (forgoing the cowl).
 * 10) Use persuasion to say that Aubert is loyal. This nets the Cowl (and is the only way of obtaining it without damning the sister or exiling her).