Group Fifteen Files Books in Order
Below you'll find the complete list of Group Fifteen Files books in publication order. This is generally the recommended reading order for the series.
Reading order verified: January 2026
Publication Order
Scorpion (By: Mark Dawson,Steve Cavanagh)
Buy on Amazon2017
Witness X (By: Scott Mariani,Mark Dawson)
Buy on Amazon2017
Little Sister (With: Mark Dawson)
Buy on Amazon2018
The Vault (By: Mark Dawson)
Buy on Amazon2020
Wormwood (By: Mark Dawson)
Buy on Amazon2022
Deadly Pleasures
Buy on Amazon2013
The Sinking Admiral
Buy on Amazon2016
Motives for Murder
Buy on Amazon2016
Playing Dead: Short Stories by Members of the Detection Club
Buy on Amazon2025
Frequently Asked Questions
The recommended reading order for the Group Fifteen Files series is publication order: 1. Scorpion (By: Mark Dawson,Steve Cavanagh) (2017), 2. Witness X (By: Scott Mariani,Mark Dawson) (2017), 3. Little Sister (With: Mark Dawson) (2018), 4. The Vault (By: Mark Dawson) (2020), 5. Wormwood (By: Mark Dawson) (2022), and 4 more. This is generally the best way to experience the story as the author intended.
The Group Fifteen Files series by Michael Ridpath contains 9 books. The series began in 2017 and continues to be a popular choice for readers.
The Group Fifteen Files series is written by Michael Ridpath. You can find more books and series by this author on our website.
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