While myths and legends of a Lost Society located deep within a proposed Hollow Earth have existed for Centuries, of the mythical Kingdom of Agartha. With it's first mentioning in Modern Society around the 19th Century, Agartha was reputed to exists in a hollow space at The Earth s Core. While more cryptic mentioning are alluded to in several non-canonical apocryphal texts, most of what is gleaned about the existence of Agartha is related to Ancient Buddhism. The legendary land is claimed to be hundreds of centuries in age. The citizens of which (over the Eons) have evolved into a higher form of human life (at least mentally). They are very adept in technology and have been given to as the creators of what modern Man perceives (and reports) as Unidentified Flying Objects. They generally shun those who live on the crust of The Planet (or surface) as Barbarians . Some sources state that The Agarthans are actually a hybrid form of Human and Alien Races. Long ago, it is stated a Colony was formed by Extraterrestrials on Earth. Whatever was the cause of their abandonment is unclear, but the Colony retreated deep into The Earth s interiors (long known to be hollow). They began to experiment with both Races in time, in an attempt to create the final hybrid form of Agarthans. The Agarthans are also credited by some as influencing Man's technological advancements through the ages. This is thought by some as their way of eventually merging both Upper and Lower Races . In Conspiracy ''circles'', many believe The Agarthans are well known to most Shadow Governments who not only keep their secret, by allow them to periodically abduct Upper Dwellers for continued experimentation.