This quest is not available in game.
Speak with Stone Guard Kurjack.
Orgrimmar's Ragefire Chasm has been taken by the Searing Blade. <name>, we cannot allow this to pass unpunished, lest they next set their sights on Thunder Bluff.
Go speak with Stone Guard Kurjack just inside the Chasm. Help him in any way you can, for our fates are intertwined.