The latest Cataclysm preview from Blizzard introduces Grim Batol, a mountain once refuge to the Wildhammers clan following the dwarven civil war of Ironforge. Located in the Twilight Highlands (of the upcoming expansion), Grim Batol is a 5-player dungeon steeped in lore, tangled between the dwarves, the Twilight's Hammer and the Red and Black Dragonflights. Tuned for level 85 players, the dungeon lies within the cavernous ruins of the mountain sacked by the Twilight Hammer cult, now being used as a training ground for Deathwing's minions.

"The cult, seduced by Deathwing's thirst for absolute domination over Azeroth, has claimed the Twilight Highlands as its base of operations," the Blizzard preview reads. "The black dragonflight has driven off the agents of the red dragonflight who guarded Grim Batol so that it may be used as a fortress for training Deathwing's minions. The halls of Grim Batol run so deep into the highlands that it is unknown to what twisted end the Twilight's Hammer is using this doomed dwarven marvel." Read the full story and view a handful of new screenshots at the Grim Batol section of Blizzard's official Cataclysm preview site.