Ancient Chest
From WoWWiki
The Ancient Chest is located in Uldaman, outside of the instance. From the entrance, take a left into the dig site, then the first left into the caverns. Head up the small slope, and at the forked caverns head to the right. The chest is in the middle of the room.
Objective of
Contains [Tablet of Ryun'eh] for the quest 
[40] Solution to Doom.
