
Historical fiction about the eruption of Mount Vesuvius in 79 AD from the perspective of Marcus Attilius, an aquarius (hydraulic engineer) responsible for Aqua Augusta, the regional aqueduct.
https://www.penguinrandomhouse.com/books/76010/pompeii-by-ro...
Robert Harris has a number of pretty cool historical fiction books about Cicero (Imperium, Pompeii, Conspirata) that are a good read also and put much of the goneby times in context.
It's historical fiction, and one of the best reads I've had in a while. I particularly liked the descriptions of the aquarius debugging the waterworks.
It's not really a secret how a pope is chosen, it's just not something most people are interested enough to look up (there's a missing "in" in that sentence but I couldn't decide where to put it).
Robert Harris wrote the book and also wrote Fatherland, Enigma and Pompeii. Those are three different books but I'd definitely read a book with that single title.