The Black Breach.
The Black Breach from an official preview.
The Black Breach[57, 31] is a rift in the Twilight Highlands, located to the east of Thundermar and northeast of Bloodgulch. It is a large fissure within the ground where the Twilight's Hammer has erected a number of buildings and tents. Their Shaman of the Black are controlling a large number of Obsidian Stoneslaves, elementals who are exploiting the breach. The shamans are also conducting some sort of ritual in the area's center.
Overlord Sunderfury and an 
[Eye of Twilight] are also located here.
Notes and trivia[]
- The stoneslaves, especially to miners who also can mine their corpses, are known for having a high droprate of
[Volatile Earth]. As such, this location is a common spot for farming this item.[1][2] - In the beta, the subzone was known as The Black Sunder.
Patch changes[]
Patch 4.0.3a (2010-11-23): Added.
