Cultists of Urizen
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There existed Cultists of Urizen on Gendar, a planet whose people worshipped the Sun Builders as gods. The Cultists were the closest thing the Gendar expatriate Maxie knew of a truly monotheistic religion before she came to Earth, although the Cultists didn't go so far as to claim that Urizen was the only god to exist, instead merely deciding to worship him exclusively. (PROSE: Out of the Box)
