User blog comment:Kacj321/Elder Scrolls Online Announcement Trailer/@comment-3544483-20120504162130/@comment-5060344-20120506192629

Yeah question on that. If the Tharn's were obviously treacherous necromancy friends before the events of Arena then wouldn't the Empire have know not to trust them, I don't know, continuity error maybe as there's no real explanation for it.