Entry Into Karazhan

I am deeply troubled by the news in this report, $N. Gaining entry into Karazhan will be difficult, however.$B$BYou see, when it became apparent that I was stranded here I split the key into three fragments.$B$BI placed the keys inside enchanted containers, and in turn placed those in places that were safe at the time.$B$BWith the dark changes Outland has endured this no longer is the case. The first fragment is in a section of Auchindoun taken over by the Shadow Council. Return this fragment to me.