The Black Temple, located in the Shadowmoon Valley section of Outland, opens its corrupted doors to 25-man raid groups brave enough to face the tormented former Night Elf and his Twin Blades of Azzinoth. The instance promises a challenge to even the most hardened guilds, but as with any challenge, the rewards have been increased substantially as well. An involved attunement process is necessary, similar to what players need to enter Karazhan, but the quests should offer little more than a bump in the road on the way to face Illidan.
Read the Rest...
http://pc.gamespy.com/pc/world-of-warcr ... 984p1.html