Dark Zealots can be found all over Deathspeaker's Watch tending to the Captive Aspirants. They carry a 
[Black Cage Key] which can be used to unlock the Black Cages for the daily quest You've Really Done It This Time, Kul (Alliance) / (Horde).
Patches and hotfixes[]
Lua error in package.lua at line 80: module 'Module:Inlinegfx/img_link_data.json' not found. Patch 3.2.0 (04-Aug-2009): Added