Thassarian, My Brother

I recently received word from William Allerton, a family friend, that my brother enlisted here in Valiance Keep on the same day he did. Thing is... my brother's been dead for years. I sold everything I owned to come looking for Thassarian, only to be stonewalled by the local bureaucracy. I've even been threatened with arrest if I keep snooping around. I need someone in the good graces of the higher-ups... someone like you. If you can help me, I heard that William's stationed at the Farshire mine.