Blue Moon is the twenty fourth Jack Reacher novel by Lee Child. Reacher gets off a bus in an unnamed American city and ends up in the middle of a turf war between two organised crime families, doing what Reacher does. Lee Child wrote a Reacher novel a year for two decades, and Blue Moon is from the late solo period before he handed the series to his brother.
For Reacher fans, the rhythms are familiar and welcome. New readers can pick up almost any volume.