Margins
Space Marine Conquests book cover 1
Space Marine Conquests book cover 2
Space Marine Conquests book cover 3
Space Marine Conquests
Series · 6 books · 2017-2020

Books in series

The Devastation of Baal book cover
#1

The Devastation of Baal

2017

The Blood Angels Chapter and their successors mount a desperate defence of their home world of Baal from the predations of the tyranid hive fleet Leviathan. After a brutal campaign in the Cryptus System fighting the alien tyranids, Lord Dante returns to Baal to marshal the entire Blood Angels Chapter and their Successors against Hive Fleet Leviathan. Thus begins the greatest conflict in the history of the sons of Sanguinius. Despite a valiant battle in the void around Baal, the Blood Angels are unable to stop the tyranids drawing ever closer, but their petitions for reinforcements are met with dread news. The Cadian Gate, the Imperium’s most stalwart bastion against Chaos, has fallen. In their darkest hour, no help will reach the beleaguered Dante and his warriors. Is this truly then the Time of Ending?
The Ashes of Prospero book cover
#2

The Ashes of Prospero

2018

A Space Marine Conquests novel Concerned by his Chapter’s diminishing numbers, Logan Grimnar entrusts Njal Stormcaller to uncover the remedy of their plight – a remedy that may lie in the least likely of places, on the damned world of Prospero. READ IT BECAUSE Space Wolves and Thousand Sons are the most eternal of foes, and this novel keys into events from the Horus Heresy and the battering the sons of Fenris have taken in the 41st Millennium in interesting and exciting ways. THE STORY The grand halls of Fenris grow ever quieter following arduous campaigns. Concerned by his Chapter’s diminishing numbers, the Great Wolf Logan Grimnar entrusts Njal Stormcaller to uncover the remedy of their plight. When a 10,000-year-old enemy embeds itself in the Rune Priest’s mind, it claims the salvation he seeks lies where it all began. On Prospero. Alongside an eclectic company of injured Space Wolves, Thralls and a Trickster who is more hindrance than help, the Stormcaller sets forth. But it soon becomes apparent that greater mechanisms are at work. It is no longer only the Sons of Russ’ fate at stake, but the entire Imperium.
War of Secrets book cover
#3

War of Secrets

2018

In the shadow of the Great Rift, Primaris Marines fight alongside the Dark Angels against the t'au, but as whole worlds burn, a terrible psychic curse is unleashed. Lieutenant Xedro Farren is a Primaris Marine, stronger and more adept than even the Space Marines his brotherhood has been sent to fight alongside. As he and his Primaris brethren support the Dark Angels in fighting a trauma-scarred force of t’au seemingly hellbent on destroying their own allies, their true quarry soon becomes the shadowy instigator of a psychic curse that could plunge a string of Imperial planets into madness. As worlds burn in the fires of battle, an unthinkable pact is struck, and Lieutenant Farren begins to peel back layer after layer of deceit to discover an appalling truth. Can he hope to emerge from this web of lies without losing his honour – or come to that, his life?
Of Honour and Iron book cover
#4

Of Honour and Iron

2018

The age of the Dark Imperium has begun, and the human race is poised on the brink of ruin. In their darkest hour, the Emperor’s servants have achieved the impossible: the resurrection of the Primarch Roboute Guilliman. Now Lord Commander of the Imperium of Man, Guilliman marshals his forces in a desperate effort to drive back the predations of Chaos: the Indomitus Crusade. Dispatched ahead of the bulk of Guilliman’s war fleets, Chaplain Helios of the Ultramarines is entrusted by the risen primarch with a mission of vital importance. Will he achieve a crucial victory for Guilliman in time, or will a millennia-old obsession spell his doom? And just what manner of weapons will be needed to wage the war to save mankind? Read it Because New insights into the Primaris Space Marines abound, as well a look at Primarch Guilliman as he leads his great crusade to reclaim the Imperium.
Apocalypse book cover
#5

Apocalypse

2019

Forces from several Space Marine Chapters mobilise to defend the cardinal world of Almace from an invasion by the twisted traitors of the Word Bearers. But unbeknownst to the forces of the Imperium, conquest is not the enemy’s sole aim… Book 5 in the Space Marine Conquest Series Lieutenant Heyd Calder is a Primaris Marine whose mastery of warfare is matched only by his diplomatic prowess. Under the orders of Roboute Guilliman, he is deployed to Almace, a minor seat of the Ecclesiarchy, to protect the world at whatever cost. Yet even as diabolical forces leer from the system's edge, Calder discovers that the capital's Cardinal-Governor, a sharp, inscrutable figure of spiritual and material authority, is hiding something. When it becomes clear that conquest is not the enemy’s sole aim, Calder resolves to uncover the secret of Almace. As the system is set ablaze, clashes of faith, strategy and politics ensue in the capital, and it becomes clear that the forces of the Ecclesiarchy and the Adeptus Astartes must fight together if they are to have any hope of victory.
Fist of the Imperium book cover
#6

Fist of the Imperium

2020

Book 6 in the much loved Space Marine Conquests series. For fans of huge and epic battles waged in the far future! ‘By their noble sacrifice is our world made mighty’ Deep within the Segmentum Solar, an Imperial Fists Honour Guard lies slaughtered upon the very world they swore to protect. The mysterious cult responsible grows in power by the day. Their malevolent tenets poisoning the hearts of Ghyre’s citizens, from its lowliest miner to its arrogant ruling class. To purge this threat, the Imperial Fists send Primaris Librarian Aster Lydorran and his tenacious brothers. These masters of siegecraft face an insurgent foe beyond any they have fought before. As dark omens proliferate, Lydorran finds himself embroiled in a battle of wits and wills with an enemy whose psychic might may surpass even his own. But this is a patient enemy, and with every passing hour, Ghyre’s doom grows closer. The stoic Sons of Dorn must leave their walls and embrace new allies, or risk unleashing the apocalypse itself upon the very doorstep of Terra.

Authors

Andy Clark
Author · 18 books

Andy Clark is a background writer for Games Workshop. Librarian note: There is more than one author in the Goodreads database with this name. Andy^^^^^Clark

Phil Kelly
Phil Kelly
Author · 22 books

Phil Kelly (born 1977) is the Creative Lead for 'Warhammer: Age of Sigmar' in the Games Workshop design studio. He has written over 60 gaming books in the last twenty years. He has also written several Warhammer 40,000, Age of Sigmar and Warhammer Horror books and audio dramas for Black Library. Librarian Note: there is more than one author in the Goodreads database with this name.

Guy Haley
Guy Haley
Author · 85 books
Guy Haley is the author of over 40 novels and novellas. His original fiction includes Crash, Champion of Mars, and the Richards and Klein, Dreaming Cities, and the Gates of the World series (as K M McKinley). However, he is best known as a prolific contributor to Games Workshop's Black Library imprint, and has sold over 1 million books set in their Warhammer universes.
Joshua Reynolds
Joshua Reynolds
Author · 83 books

Josh Reynolds’ work has previously appeared in such anthologies as Historical Lovecraft from Innsmouth Free Press and Horror for the Holidays from Miskatonic River Press, and his novel, Knight of the Blazing Sun, is currently available from Black Library. He can be found at: http://joshuamreynolds.wordpress.com Librarian Note: There is more than one author in the GoodReads database with this name.

548 Market St PMB 65688, San Francisco California 94104-5401 USA
© 2025 Paratext Inc. All rights reserved