Mark Greaney Books in Order

Mark Greaney is the inheritor of two spy-thriller thrones: his own Court Gentry - the Gray Man, a killer with a conscience and a liver condition - has run fifteen novels since 2009, and he co-wrote seven Tom Clancy Jack Ryan novels, taking the franchise over entirely after Clancy's death in 2013. The Gray Man became a Netflix film with Ryan Gosling and Chris Evans (2022), and the series is running at its commercial peak right now: one book a year, The Hard Line (February 2026) the newest, and a sixteenth already announced. The order question is one clean answer - strict series order, because Gentry's found-family accumulates like gear on a pack frame. This page sequences the whole shelf (2009–present).

Where to start

The Gray Man (2009), book one - the original kill-list thriller, still the best entry. Readers who want the current peak can start at Back Blast (#5) or Agent in Place (#7), but Gentry's relationships only pay from the beginning.

Does the reading order matter?

Gray Man in strict publication order: The Gray Man (2009), On Target (2010), Ballistic (2011), Dead Eye (2013), Back Blast (2016), Gunmetal Gray (2017), Agent in Place (2018), Mission Critical (2019), One Minute Out (2020), Relentless (2021), Sierra Six (2022), Burner (2023), The Chaos Agent (2024), Midnight Black (2025), The Hard Line (February 17, 2026) - with #16, Dark Union, already announced. Two side notes: Sierra Six jumps between timelines but assumes you know book one; and the Netflix film adapts book one loosely. The Clancy co-writes (Locked On, 2011, through Support and Defend, 2014, seven books) run in order inside the Jack Ryan canon. Armored (2022) opens the separate Joshua Duffy bodyguard line; Red Metal (2019) is the standalone written with Rip Gerbers.

Which one is the best?

The Gray Man (2009), the clean original; Back Blast (2016), the return-to-origins fan favorite; Sierra Six (2022), the structural swing that worked.

Related guides

Readers finishing this shelf usually want the map next door: The Gray Man books in order, Jack Reacher books in order, Daniel Silva books in order. Every guide follows the same format — the shelf, the entry point, the honest answer about order.

Make it a project

Pick a session size and let the days accumulate — at the pace our reading speed test measures, most shelves above clear in a few weeks of half-hours. Every guide on the books in order shelf follows this same format, and when a book lands, its 8-question quiz is waiting on the original book quiz.