Once an incredibly intelligent creature, Ch’xul served as the highest level of priest for the Elder Beings. In particular, he was dedicated to the great nautiloid, Ithia, daughter of Zathog. After her 'death' and the Old Gods finally being driven away, Ch’xul went on a mission to find a way to awaken ever-maddening Elder Beings from their eternal slumber. In this, he surmised, they would by instinct protect the planet if the Old Gods returned, but would not lose their minds or contaminate the remaining life there with their growing, dreaming madness. Over time and from exposure, Ch’xul himself steadily went more insane, struggling to keep what he could of his intellect. He documented his experiences and story during his travels, which Elias finds later. Ch’xul is never actually seen, so the player is left to imagine what he might look like. There are some very rough reliefs etched into ruins here and there of his people, but nothing very distinct.

As an alien, Ch'xul shouldn't sound human. However you would like to interpret this, we leave to your artistic choice.