Yuzh

[CAS Infernal] A dark star, described as a "blackly flaming orb," that is a companion of Yamil Zacra and a contrast to the other's "insupportable whiteness." The planet Pnidleethon revolves around both. Viewed from Earth, the system would appear to be between Algol and Polaris, though it is not clear whether Yuzh is actually visible.

Avalzant told the evil aspirant Oliver Woadley that he must pledge himself to Yuzh, Yamil Zacra, and Pnidleethon.