Conqueror's Chests are present throughout the Cave of The Conqueror but are hidden in secret locations. A key is required to open these chests. There is a chance to get good items from these chests, and consequently these keys can sell at very high prices. The keys are dropped by the earthen soldier mobs in CC.
Chests can contain any of the following:
The higher the level of the chest you open, the greater the chance of a valuable item.