The legend surrounding the cave system suggested that it contained a mysterious metal library, inscribed with an unknown language and believed to hold invaluable knowledge. Some people even speculate that the library contains information from a civilization beyond Earth that influenced the construction of ancient structures like the pyramids.

Armstrong’s expedition partner, Scottish engineer Stan Hall, initially informed him about the potential existence of this ancient underground library. Some people question why Armstrong, a highly respected scientist, would entertain such a notion. Could it be that his experience on the moon sparked his interest in extraterrestrial secrets?