Destroy the Demonic Presence atop Karazhan.
Keanna's last few entries confirm our suspicion of a demonic presence atop Karazhan.
She detected the arrival of a Burning Legion agent whose location she described as coming from the top of the tower.
Her entries stop there.
Karazhan is a very important place, <class>. It is a portal into the nether, a beacon shining into other worlds. The possible repercussions of it falling into the wrong hands are unthinkable. The demonic intrusion must be stopped. And you, <name>, are the only one with the key.
The player must fight his way to the top of Karazhan and defeat the final boss, Prince Malchezaar.
Karazhan quest progression
This is part of the Karazhan Quest Progression quest chain.