Someone asked if the Staff of Osiris in the book was a real artifact.
While the idea of an actual staff that belonged to Osiris was a construct of mine, the idea that Osiris once lived and walked the earth was not, nor was the idea of magical staffs. Here is a picture of an actual staff taken from a tomb under the Ramesseum in Thebes.
The basic plot for TatSoO had been percolating for a couple of weeks, and then when I saw a picture of this staff, I knew it was it.
It was found tangled with a mass of hair! Isn’t that especially creepy!