Black Orb

Black Orbs are required to open the Altar of Night in the First Ascent at the Pharos at Ridorana. They are also required to proceed through Subterra.

''Very rarely, when a certain creature is slain, the lost life force coalesces into a tiny black orb. Some magickal devices are said to draw on this energy.''

Once the seal is broken on the Threshold of Night is broken, the creatures in the First Ascent stop dropping Black Orbs. It is a good idea, then, to pick up as many as possible since they are required later for Subterra and the enemies there are much tougher.