Witch Hunt

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

Quick walkthrough
High Confessor give you the task to look into one of the "loyal" subjects. Auburn, once you find her and talk to her, once the conversation has started she "slips up" saying she doesnt beleive in the High Confessor. You then search her bunk and find a note between her and someone else. You can give her the note(reward 95 caps) and return to the high Confessor where he give you a crazy looking helmet that increases your intelligence the high the rads are. Otherwise turning her in will give you quest complete exp (456) and the same scowl.