Although this third part begins by complementing the previous two books with additional content, and delves into an outline of what ancient texts expose about the original universe from which everything emanated (including this universe), its center is a complete thesis on the history known as the episode of "fallen angels".
It begins by explaining that in very distant eras it is said that the gods had bloody wars among themselves for the sovereignty of the cosmos. Finally the dark forces were divided between Behemoth and Leviathan (or Raju and Ketu in the stories of remote India). Later, in subsequent wars, another alliance came to Earth: the Nephilim. At various times and in different ways, the "sons of heaven" came down and established their own lineage, crossing DNA with that of mortal humans, thus giving rise to monarchies. It all began with the era of the so-called "giants", who are talked about in almost all the stories in the world.
This thesis also talks about the hierarchies of angels and demons, and the races of giants and spirits, as well as their origin and role.