Sky-Reaver Klum

Sky-Reaver Klum is an orc located at Krasus' Landing in Dalaran. If you've learned Cold Weather Flying he can send you to Ogrim's Hammer. He seems to think the Alliance got what they deserved by rushing into Icecrown, unprepared.

Quests

 * Warchief's Command: Icecrown!
 * Preparations for War (Horde)

Quotes
Ogrim's Hammer is ready to strike in Icecrown. You will find no finer vessel.
 * Gossip

Speculation
It is unknown what became with him after the Purge of Dalaran and if he was even involved in it.