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John McMahon Books in Order
Author of 2 series.
Bibliography verified: March 2026
Quick Answer
What are all of John McMahon's book series? John McMahon has written 2 book series. The most notable is the Detective P. T. Marsh series.
Complete series list with all books in reading order below.
Book Series by John McMahon
- #1
The Good Detective(2019) - #2
The Evil Men Do(2020) - #3
A Good Kill(2021)
- #1
Head Cases(2025) - #2
Inside Man(2026)
About John McMahon
Author of 2 series.
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