Astra Militarum Books in Order
Part ofRachel Harrison Books in OrderSee Rachel Harrison's Astra Militarum books in order, with quick summaries, Severina Raine notes, and background on these Warhammer campaigns.
Last updated: July 6, 2026
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Astra Militarum books in publication order
4 books
Execution
by Rachel Harrison
2017
During the siege of Mone, Commissar Severina Raine executes a captain who refuses to advance, then takes command herself. It is a sharp introduction to a hard, disciplined leader forced to earn a regiment's trust in the middle of disaster.
A Company of Shadows
by Rachel Harrison
2018
Shot down behind enemy lines, Raine and the 11th Antari Rifles must escort a vital officer and stay alive in cult-held territory. The story leans into exhaustion, fear, and the brutal math of survival.
Fire and Thunder
by Rachel Harrison
2018
Trapped in the shattered city of Balfar after their retreat collapses, Raine and her troopers fight through maze-like streets looking for a way to strike back. It is a claustrophobic battle story about endurance under impossible pressure.
The Darkling Hours
by Rachel Harrison
2019
Raine and the Antari Rifles are sent into the ruined city of Termina to hunt a powerful enemy psyker. Omens, fear, and urban ruin give this Severina Raine story a grim, haunted edge.
Astra Militarum books in chronological order
Series background & context
Astra Militarum stories live at ground level in Warhammer 40,000. These are the books about ordinary human soldiers facing things that are anything but ordinary, cult uprisings, artillery barrages, psychic terror, and the grinding weight of Imperial duty. Rachel Harrison's corner of that world is tied closely to Commissar Severina Raine and the 11th Antari Rifles, so this page works best as a guide to that strand of the wider setting.
Raine is not a soft-focus hero. She is a commissar, which means her job is discipline first, comfort second, if it comes at all. In Execution, A Company of Shadows, and Fire and Thunder, she is thrown into collapsing battle lines, enemy territory, and ruined cities where any mistake costs lives. The regiment around her, especially Captain Andren Fel and the Antari rank and file, matters just as much as the body count. These stories care about command, trust, and whether soldiers can keep moving after fear has already done its damage.
The setting matters because Harrison keeps it close to the mud and rubble. The war against the Sighted is not abstract background noise. It shapes every decision, from retreats through shattered streets to desperate stands in tunnels and cathedrals. The Darkling Hours adds a more haunted edge, sending Raine into the ruined city of Termina to hunt a powerful psyker. Trials slows things down just enough to show what made Raine and Fel who they are, and why duty in this universe so often looks like damage that never quite heals.
These are battle stories, but they are also stories about pressure.
What makes this branch of Astra Militarum fiction easy to follow is that the books build toward Honourbound without becoming difficult if you miss one. The shorter pieces act like campaign snapshots. You see Raine earning authority, testing old loyalties, and learning what kind of survival the Antari can live with. By the time Honourbound arrives, the war in the Bale Stars feels lived in. The enemies are larger, the campaign is broader, and Raine's past starts pushing back, but the appeal is still the same, hard choices made by very mortal people in an inhuman age.
If you are coming to this page for a place to start, reading the short fiction before Honourbound gives the fullest picture of Raine and her regiment. If you only want the main event, Honourbound can carry the weight on its own. Either way, expect military science fiction with a grim, gothic streak, less about invincible heroes and more about discipline, fear, and the cost of holding the line one day longer.
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