!? I don't know, lol...but their is actually alot of people , books, and rumors, about aliens and creations under ground.
Part 2 about it, (aliens)
"This sound completely insane. However, there is not a single person on this Earth who understands the true nature of reality well enough to call this man a liar. We live on the surface of this planet -unlike Red Elk's subteranians- but, as a species, we are still in the dark."