This is the ninth Gordianus the Finder volume I've read (8 novels, 1 collection), and yeah, I'm 22 years behind on this series -- which is par for the course. Alas.
For those who follow my Writing Instructor Grumpitudisms, this is one-grimace novel, like its predecessor. Saylor is addicted to POV nods, smiles and facial expressions. He has episodes of up-and-wentism. But while I notice some of them, it isn't really disruptive in this volume.
This is set during the months when Caesar and Antony have taken armies across the sea to Greece, and eventually to Thessaly, there to fight Pompey, and the volume ends soon after news of Pharsalus reaches Rome. Gordianus has been retired for a bit, but hard economic times have eaten his nest-egg. The book begins with a funeral for Cassandra (a character we don't know), provided by Gordianus, to which nobody goes -- at least not in the procession. Indeed, we learn that nobody paid respects to the body as it lay in his atrium for days. But when the fire is consuming this person, we discover that seven important women are in attendance, keeping their distance. Gordianus notes them all, and since Cassandra was poisoned, you can see what's coming next.
The structure of the next several chapters gets to be too predictable. We have one chapter of Cassandra backstory (slowly revealing G's relationship with C) followed by one interview with one of the seven women. That goes on for a while, and then Saylor disrupts it somewhat, which is a good thing.
Having been in Rome just before the pandemic, I was more attuned to details of location than I might have been in the past. Lydia Davis frequently gives precise locations for actions, and I realized that Saylor is more likely to be vague. Things happen in the Forum, but not in a particular known spot. He does specify seeing certain hills and gardens (usually looking out from the Palatine, where he lives), and nothing seemed out of place, but I can make the observation that Saylor is more likely to be specific about persons and politics than he is about locations.
I did catch one anachronism, but it's one that might have been deliberate. I can see having long discussions with editors about naming strategy. These books are set in the first century B.C.. The names of the seven hills of Rome were long set by then, as was the Vatican Hill. But the "hill of gardens" outside the City walls is now known at the Pincian Hill, and Gordianus calls it that, even though the family who will move there and from whom that name derives won't get there until half a millennium later.
That aside, this novel does an excellent job of exposing what it must have been like to be one of those tiny figures avoiding the colossi of Pompey and Caesar, during the Civil War. It focuses on what the women were like, mostly left behind in Rome, and what the Roman citizens had to deal with, with the Republic run off the rails. It has a mystery to pull you through the pages, and it's a good example of what I read this series for. A solid entry in a worthwhile series.