The book tells of a race of men who were created by extra-terrestrials [ANUNNAKI], Adam I , the Galactic Man [Adamu], and Adam II, chemical man [Lulu],  and how our greater cousins came into the Garden to rescue us from our enslavers. The ancient texts of the Popul Vuh tells of a second creation of man, because the first one 'knows all' and how the aliens [ANUNNAKI] needed to make a dumber version of man to worship and work for them. Now we've come to the end of a cycle where Adam I needs to be the dominate species of the planet, while Adam II who is paranoid, animal and mistrusting, needs to fade into the sunset like all of the other versions of man during our history.