Eddis, Attolia, Sounis

I’ve been scrounging through past posts and comments looking for discussions of a few ideas and haven’t found quite what I was looking for, so here they are:

1. Back in The Thief, when Eugenides tells the Magus and company the stories of his god, he says that he leaves something out. Have we ever been told what he left out?
Kamet says that part of a tablet is missing from the story of Immakuk and Ennikar—the part that explains exactly how they stole the oil of immortality. Is it possible that these two missing pieces could be connected? Is there a reason why sandal-polisher Eugenides was so interested in Kamet’s Mede mythology? Did the god Eugenides help Immakuk and Ennikar steal (key word: steal) the oil of immortality and does said oil have anything to do with Hamiathes’ Gift?

2. When Kamet has to change his shirt in front of Costis he says something to the effect that “for a moment my secret was visible” (I don’t have the book in front of me now so that might not be an exact quote). On my first reading I assumed he meant the scars on his back from being whipped, but I think he had already said that the scars were visible at the neck of his shift, so maybe he has some other secret? For a few crazy hours I theorized that Kamet might be a woman—after all, the entire book is written in first person so he calls himself “I” not “he,” but then I found the line where he says “I could have been the most powerful man in the empire,” so that theory is probably not true. Any other ideas?