It pays to take note of other titles listed by a publisher at the back of their books. I came across this one that way, buying it recently as part of a Kindle ebook promotional period.
Initially, I had some doubts as I'm honestly not that interested in ancient gods, but as it contained modern travel I figured "Why not?" Turned to be excellent travel writing with the ancient Egyptian past explained where necessary, but never deep in those weeds. The author succeeds in his quest to discover links between now and then.
Many of us have read the Amelia Peabody mystery series featuring that brilliant Edwardian archeologist. Here, Sattin goes on the trails of two such women whose papers give him encouraging clues.
I was surprised to learn that Copts embrace their pharonic roots, seeing the story of Osiris (I think it was) as the first sign of monotheism. He also goes into the veneration of saints (Christian and Muslim) as related practices. To be fair, he does encounter Egyptians who scoff at his quest.
My loyal readers know travel narrative is my favorite genre. So, to exceed expectations doesn't happen often; I'm quite picky. I'd place Sattin up there with Bryson, Theroux and Newby. It did help that he's fluent enough in Arabic to get beyond the world of academics.
Highly recommended!