The Emerald Sanctum' (more commonly known as ES or Green Sanctum) is a 10/25 player raid implemented in World of Warcraft: Cataclysm. It's location is beneath the Wrymrest Temple in Dragonblight. The Black Dragonflight, lead by Lorkarien, have captured members of the other dragonflights and corrupted them. Alexstrasza seeks out adventurers to attempt to save the other Flight's members, or if forced to, kill them.