Agartha was created by “Saint Yves d’Alveydre” and appeared in Mission de l’Inde en Europe, Mission de l’Europe en Asie (Mission to India from Europe, Mission to Europe from Asia, 1885). Joseph Alexandre Saint-Yves, Marquis d’Alveydre (1824-1909) was a French thinker and mystic, similar to (if less influential than) Eliphas Lévi. Agartha is an ancient underground kingdom in Tibet.
The kingdom has a strange effect on outsiders: they either do not notice it as they travel through it, or they forget about it once they have seen it. Even so, there are many rumors about Agartha. It is said that its capital, Paradesa, holds the University of Knowledge, where the occult and spiritual treasures of mankind are guarded. Those in charge of these treasures are the Secret Masters, superior beings who are the spiritual leaders of humanity. They are in telepathic communication with enlightened humans around the world, who in turn try to spiritually uplift humanity until “the Anarchy which exists in our world is replaced by the Synarchy,” the proper system of government for all of humanity.