Coffer of Promise

Coffer of Promise is a fixed device located at the Temple of Uldum, and then Cradle of the Ancients in Uldum.

History
Little is known about the Coffer of Promise except for that it is one of the key artifacts for all of Azeroth. Safeguarded in the Titan facility of Uldum, for thousands of years it was safe behind the cloaking device veiling the entire zone. After the Shattering Deathwing enlisted allies to recover the Coffer for him. It holds the disks that are the actual key to the reorigination device, used by the Titans to wipe the 'failed' worlds and reform them into the original state. Deathwing plans to use the device for his own agenda. Coffer itself is hidden within Temple of Uldum behind it's own magical shield. The shield itself is connected to the Obelisks of Uldum: Sun, Moon and Stars. Only if those three are activated can the Coffer be accessed.

Quests
The Coffer of Promise is a centerpiece of the questline starting with Take it to 'Em!, and culminating with the quest The Coffer of Promise, (although the Harrison Jones and the Temple of Uldum gives you the ).

Trivia

 * The Coffer of Promise is based on Ark of the Covenant, in appearance and powers as well as the secret it holds. The Ark holds the Tablets with the Ten Commandments, while the Coffer holds Titan Discs that grant access to the reorigination device within Halls of Origination.