Starting to get into conspiracy theories and occult works. Also, the cover art is amazing.
This one is very old and was written by a German scientist and rocket/space/sci-fi enthusiast (credited with laying some ground work for the likes of von Braun and Goddard). Didn't know that when I bought it- I just wanted to read about the lost city. I used to be one of the biggest space/rocketry enthusiasts evaaar. Life's funny like that sometimes.
BIG business.
