Yes, there were six other ancient books, stories centered around the
Iliad and the Odyssey.
   Its kind of amazing that I did not find out about this until now.
Sadly, only a few fragments remain. However enough is left that we can
piece together the story of the actions of the Fallen angels and their
Nephilim through tales of this "heroic age." These stories could
actually be from before the flood of Noah's day, perhaps even as
companion books to the poem of Gilgamesh, which was definitely before
the flood and is also an alternate flood story.
https://www.youtube.com/watch?v=ShZ_0ICoOgE
Lewis B