Heraxnar

Heraxnar was a necropolis in the service of the Scourge during the campaign in Northrend. Destroyed in a battle in the Borean Tundra, this necropolis crashed into the hills near the outskirts of the territory. It's lichlord and attending Scourge were all rooted out, leaving an abandoned wreck.

Sometime after the fall of the Lich King, Plagueheart raised the shattered structure and brought it back to the Plaguelands to be used in the Cult of the Damned's wars; this necropolis is rumored to be floating above North Harbor now, servicing a sect of the cult.