When humans were made from clay, their brains were added in and made from a pink fluid of the gods that allowed thetans to dock themselves inside of human bodies. Humans were perceived by the gods like artificial intelligence is perceived by us today, often poor imitations of life that could be distinguished and were just outputting responses based on what they were able to perceive, often saying things that were meaningless or that did not match conversations. The god of the moon grew impatient with letting humanity develop naturally, and created a new god to represent the brain. His name was Valtius and he helped shape the brain into how it exists today. He was given books from the library of the underworld on anatomy as well as the designs made for humanity by the goddess Vitruvia.

Valtius created the left brain and enhanced its ability to process logic and do various forms of math, and the right brain was the creative form created by Valtius under command of Biachar. Valtius appears as a blonde, white, or silver haired man in his mid-twenties with glowing white eyes. He is not explicitly a moon deity, but he is deeply connected to Biachar as a servant of him. He is followed everywhere by three boys who appear to be between the ages of 12-15 who represent different aspects of the creative mind such as flexibility, originality, and curiosity. Sometimes they are his sons, sometimes they are friends or relatives, or they may even have different relationships to Valtius that we would consider unusual such as competitors, co-workers, or partners. They are referred to as the aspects of Valtius and can be worshiped on their own as well under the same name as Valtius and with the same practices.

Valtius is not worshiped at a shrine or summoned because he is present in all our lives as part of our mind. Being creative is the offering Valtius demands if any, and he can assist the magician with this. He can greatly help artists and those seeking solutions for problems that seem difficult. He is loosely associated with The Flowermaker and is sometimes said to be a distant relative of him.