Surprise Attack on Karazhan

Karen briefly told his brother Kael'thas what happened. Now that we have gathered information from many sources, we can finally tell Kael'thas all the news.

"You mean Medivh is possessed by a demon, and is the leader of the Burning Legion, Sargeras?" Kael'thas was surprised and confirmed to Karen that this news was indeed a bit beyond his expectation.

"Yes, brother, we are going to stop him."

"Are you sure?" Kael'thas asked after thinking for a while.

"Honestly, no.

But this is what we have to do.

If you can't...