Altars.

[Sovereign]

A dungeon horrible on all sides round, like a great furnace, yet from those flames no light; but rather darkness visible served only to discover sights of woe amidst regions of sorrow and drear dales where peace and rest can never dwell. Carved within the bones of the earth, the altars of the Dark Lord are great beacons of twisted Dark Side Energy; ensnaring all of those that comes about within jaws of steel for their bear within them the will of the Dark Power and his bidding. Every Sith that raises one in his Lord's honor shall be greatly rewarded.