I actually can't see myself completing that quest on
any of my characters. If I could use a Thalmor I would, but, unfortunately the point of the quest is to take someone who trusts you so F Boethia.

I started it because I thought I could 'complete' it by killing all of the cult (and maybe you can, but when I killed the last one and the Conduit started talking to me I had to exit the dialogue so I didn't see the response options. The last survivor had run into a Frost Troll's patrolling path and the survivor died before the Frost Troll so the Troll was whaling on me and killing me during the conversation with the Conduit.

I was so pissed that I haven't gone back to a wiki to see if there was a way.

).
If the quest is/was causing others to bug out and I had to clear it from my log I'd choose a merc or a rude follower.

Edited for spelling.