Eric Thomson books

Eric Thomson is a Canadian military science fiction author who writes action-focused space opera across five interconnected series, following soldiers, officers, and investigators through wars, conspiracies, and the slow collapse of galactic empires. His work appeals to fans of hard military SF with strong character development.

Ashes of Empire Reading Order

Title Published Buy on Amazon
Imperial Sunset 2018 Buy
Imperial Twilight 2019 Buy
Imperial Night 2020 Buy
Imperial Echoes 2021 Buy
Imperial Ghosts 2022 Buy
Imperial Dawn 2024 Buy
Imperial Rogue 2025 Buy

Constabulary Casefiles Reading Order

Title Published Buy on Amazon
The Warrior’s Knife 2018 Buy
A Colonial Murder 2020 Buy
The Dirty and the Dead 2022 Buy
A Peril So Dire 2023 Buy

Decker’s War Reading Order

Title Published Buy on Amazon
Death Comes But Once 2014 Buy
Cold Comfort 2015 Buy
Fatal Blade 2016 Buy
Howling Stars 2016 Buy
Black Sword 2017 Buy
No Remorse 2018 Buy
Hard Strike 2019 Buy

Ghost Squadron Reading Order

Title Published Buy on Amazon
We Dare 2019 Buy
Deadly Intent 2020 Buy
Die Like the Rest 2021 Buy
Fear No Darkness 2023 Buy
Violent Fires 2024 Buy

Siobhan Dunmoore Reading Order

Title Published Buy on Amazon
No Honor in Death 2015 Buy
The Path of Duty 2015 Buy
Like Stars in Heaven 2016 Buy
Victory’s Bright Dawn 2017 Buy
Without Mercy 2018 Buy
When the Guns Roar 2019 Buy
A Dark and Dirty War 2021 Buy
On Stormy Seas 2022 Buy
The Final Shore 2024 Buy

Eric Thomson spent years in the Canadian military before becoming a full-time novelist, and that experience informs the authenticity running through his fiction. His books focus on professional soldiers doing difficult jobs in hostile environments, with the politics and bureaucracy of military life treated as seriously as the combat. The Siobhan Dunmoore series, which began in 2015, established the core of his universe and remains his longest-running sequence.

Across his five series, Thomson builds a consistent future history where humanity has spread across the stars but struggles with the same institutional failures and moral compromises that have always accompanied empire. The Ashes of Empire books deal most directly with civilizational decline, while Ghost Squadron and Constabulary Casefiles focus on smaller-scale operations within that broader context. Decker’s War, his first series, remains a strong entry point for new readers.

Frequently Asked Questions

How many books has Eric Thomson written?

Eric Thomson has written 32 books across five series.

What was Eric Thomson's first book?

Eric Thomson’s first book is Death Comes But Once, published in 2014.

Are Eric Thomson's series connected to each other?

Thomson’s series share the same universe and some characters cross over between them, so readers familiar with one series will recognize references in others. The Siobhan Dunmoore books are generally the best entry point, but Decker’s War works equally well as a starting place if you prefer a more ground-level military perspective.

Disclosure: As an Amazon Associate, we earn from qualifying purchases. We may receive commissions for purchases made through links on this site.

Privacy Policy