On an Imperial outpost world on the fringes of tau space, the renowned Commissar Ciaphas Cain and his fractious regiment of Valhallan Guard, newly created from the remnants of two devastated units, find themselves in the middle of a war. As the Astra Militarum struggle to contain worldwide civil insurrection, can the wily Commissar Cain identify the real villain before the planet is lost to the Imperium forever?

On a world besieged by the forces of Chaos, the Emperor's Children and the World Eaters are forced into an uneasy alliance when the bodies of the fallen start to go missing....

On the world of Tevrat, Callidus Assassin Klara Rhasc stalks her prey, awaiting the moment to strike. But when her mark is murdered by a crazed Eversor Assassin, Rhasc embarks on a new kind of mission: to find and subdue her fellow operative.

A great darkness has befallen the galaxy, and the armies of Chaos are rampant. To survive, humanity must retaliate and take back what they have lost. By the will of the reborn primarch, Roboute Guilliman, is the Indomitus Crusade launched - a military undertaking that eclipses all others in known history. From the Throneworld of Terra does the Avenging Son hurl his fleets, their mission the very salvation of mankind.

As part of an elite Deathwatch kill team, Brother Balthasar of the Dark Angels joins a special Inquisitorial mission to the eldar craftworld of Kher-Ys. Long ago ravaged by the daemonic forces of Slaanesh, the craftworld may still harbour the unlikeliest of allies for the Space Marines and the key to a greater victory for the Chapter.

The Horus Heresy is over. The traitor Legions have scattered, fleeing the wrath of a vengeful Imperium. The World Eaters are leaderless, their primarch missing and their greatest hero, Khârn, locked in a coma. The surviving Legionaries have turned upon themselves, their Butcher's Nails driving them to ever-greater acts of berserk savagery. Poised on the brink of destruction, the Legion needs direction. 

Fell times have come to the galaxy. Cadia has fallen, destroyed by the onslaught of Chaos. A Great Rift in the warp has opened, and from its depths spew daemons and the horrors of Old Night. But all hope is not lost… A hero, long absent, has returned, and with him comes the wrath of the Ultramarines reborn. Roboute Guilliman has arisen to lead the Imperium out of darkness on a crusade the likes of which has not been seen since the fabled days of the Emperor. But never before have the forces of Ruin amassed in such numbers, and nowhere is safe from despoliation. 

The Blood Angels Chapter of Space Marines is under threat. Having obliterated all human life in the Red Scar region of space, the largest tendril of Hivefleet Leviathan ever seen in the Imperium has converged and is making relentlessly for Baal. To face this awesome foe, Commander Dante has called upon the Successor Chapters of the ancient Ninth Legion. The Sons of Sanguinius gather in numbers not seen since the dark days of the Horus Heresy. 

Travelling across the daemon world of Eidolon in search of the stolen Blade Encarmine, Blood Angels Captain Leonatos and his battle-brothers encounter survivors from the 409th Kadmeian Janissaries regiment of the Imperial Guard.

Amongst the Space Wolves, the name of Lukas the Trickster is as much a curse as anything in the old tongues of Fenris. Named Jackalwolf by his masters, none of whom wish his dubious fealty, he now plays a dangerous game with the hordes of orks massing on Polix Tertius. Risking the ire of Wolf Lord Kjarl Grimblood as well as the blades of his xenos foes, he turns his attentions to the planetary vox-communications network and begins to broadcast....

As the war against the vicious alien orks on the world of Piscina IV grinds on, Deathwing Captain Belial is haunted by his failure the first time the Dark Angels and greenskins clashed on that war-wracked world, when he faced the Great Beast, Ghazghkull Thraka himself, in single combat....

Exile to the miserable world of Sedh, the disgraced Necron Lord Oltyx is consumed with bitterness. Once heir to the throne of a dynasty, he now commands nothing but a dwindling garrison of warriors, in a never-ending struggle against Ork invaders. Oltyx can think of nothing but the prospect of vengeance against his betrayers, and the reclamation of his birthright. But the Orks are merely the harbingers of a truly unstoppable force. Unless Oltyx acts to save his dynasty, revenge will win him only ashes. 

Desperate and isolated, Sergeant Estabann and Brother Cordoba of the Crimson Fists Space Marines are hunting the daemon that destroyed their battle-brothers.

Blade of Purity contains two linked tales of the Grey Knights: Incorruptible and True Name.

Before the being called the Emperor revealed himself, before the rise of the aeldari, before the necrontyr traded their flesh for immortal metal, the world was born in violence. Even when they inhabited bodies of flesh, Trazyn the Infinite and Orikan the Diviner were polar opposites. Trazyn, a collector of historical oddities, presides over a gallery full of the most dangerous artefacts - and people - of the galactic past. Orikan, a chronomancer without peer, draws zodiacs that predict and manipulate the future.