This is book 12 of the "Burke" series.

This note does not contain major spoilers for the book.

Middle and apparently unusual entry in the series.

Burke appears to be a crusader against people who hurt children, particularly sexually. He has a large mostly-criminal network of people with an interest in that, too, and is not very legal himself.

In this one, a bit of history comes to life and sets up a trap for him, and actually does trap him and does considerable damage. Then he tracks it down and deals with it.

These are modern noir crime novels, mainstream, not the least fantastic; but there's a very cyberpunk feel to the way the main character views the world he moves through. I never did like cyberpunk worlds, so that was something to be overcome, a bit.

The author is marked as an attorney as well, and some of the biography suggests he may share Burke's negative attitude towards child molesters.