A Game of Chance, An Infinite Journey
Ariuk has the appearance of a perfectly handsome man, and is clad in green and golden armor. He carries a sword of light, which he has used to subdue countless demons. Ariuk is the Power in charge of maintaining the orbit of Jupiter, and has a silver fortress on Callisto.
Ariuk met Carl at the Fractal Observatory, a demi-plane constructed to contemplate mathematical order, and has had long conversations with him about the nature of heaven since then.