Rating: WARTY!
Edited by Stephen Mitchell from translated sources, this is the antique story of Gilgamesh, King of the "Great walled Uruk" which is where the Biblical Abram hails, I think.
This book has a bibliography, a glossary, some eighty pages of notes, as well as as sixty-page introduction which I skipped as I do all introductions, prologues, and so on, meaning that the actual story occupies only a hundred pages or so in the middle! That said, the story was fun. It's they way they told tales back then which was as entertaining as the tale itself. There was much repetition, especially during the travel portions, but to be able to read literature from two thousand years BC is pretty epic. How many authors of today will still be read in 6017?!
Gilgamesh and his sworn friend, once enemy, Enkidu were giants of men, legends in their own lifetime, who took on challenges and monsters, and even faced-down gods, and while they were often fearful, they nevertheless won through with each other's support. These epics predate and underlie the later biblical stories (the Biblical flood story comes from the legend of Utnapishtim mentioned here). You can truly feel Gilgamesh's grief when Enkidu dies, and understand his sudden need to find out if it's possible to live forever. How he's robbed of this is a bit unconvincing, but even story-tellers back then knew that no one really lived forever!
I recommend this. You can find it free online at Google docs or at Gutenberg. I'm pretty sure this is out of copyright by now(!) even by Disney's ever-expanding standards, so you might consider it as an inspiration for your own novel.