The origins of the Société Occulte goes back to the Middle Ages when several individuals were in contact with Dark Aether entities, including Norticus and Kortifex. Over the centuries, they wrote and compiled a spellbook of Dark Aether rune magic called the Tome of Rituals and only their most inner circle was able to see it. As time went by, the members of the Société Occulte became the wealthiest and most powerful people in Europe. They however kept secrecy of their institution, always changing their meeting sites.
One day, a senior member of the Société, Lucien Poiret, an architect who was also a Freemason, designed what would become the Société mystic fortress. His building, Hotel Royal, was erected above the Paris catacombs which were laid out in a Dark Aether rune magic pattern, creating a dimensional nexus. Within Hotel Royal, the Société performed seances and rituals using the Tome of Rituals, calling upon the various entities to help them increase their wealth and influence.
However, during the 1920s, a crisis occured within the Société. The Tome of Rituals was torn apart and its pages hidden in sacred places around the world by entrusted members.