by Byron Mudry on Feb 12, 2007
After completing the Mana Tombs and adventuring a bit more in Terokkar Forest and Nagrand, you will be ready for the next instance in Auchindoun, The Auchenai Crypts.
The Auchenai Crypts are a wing of the the Auchindoun instance that is meant for players level 65-67. Many of the quests are available right outside the instance, however you must do a quest chain that will allow you to see the ghosts that are walking the area before gaining access to some of them. Even if you have not done the preliminary quest the instance is still worth doing for all of the loot from the bosses. The instance is full of Draenei, humanoids and undead Draenei.
You can read the whole guide here: TenTonHammer's Guide to The Auchenai Crypts.