The Thousand Sons have thrown in their lot with the traitor Horus, and Terra awaits them. Their appointed task shall be to break the psychic defences around the Imperial Palace - but not even Magnus the Red has the magical might to defy the Emperor's will so brazenly. He needs a weapon. Amidst the ruins of the city of Tizca lies what he needs, the legacy of a world long dead and a war that brings shame to the Crimson King. Now, he and his favoured son Ahriman seek that weapon - and Ahriman will also have answers to questions he didn't even know need asked....

Piamen is a tranquil world in the far reaches of the galaxy. Since throwing off the yoke of alien invaders, they have remained free and peaceful...until the coming of the Imperium. When they refuse to join mankind's star-spanning empire, a force of Legiones Astartes is despatched to bring the planet to compliance. And when the Night Lords come, darkness falls. Piamen will never be the same....

As the Horus Heresy rages and the death toll rises, one more will be added to the numberless dead: Sibel Niasta, personal astropath to the First Lord of the Imperium, Malcador the Sigillite. As her end approaches, Malcador sits vigil by her bedside, and the pair discuss their friendship and what it means - how the past and present have shaped Malcador and the Imperium, and what the future holds.

The 33rd Grand Battalion of the Iron Warriors, newly raised and seeing battle for the first time, have the honour of the primarch himself, Perturabo, leading them. But the Hammer of Olympia is there for more than just battle - he is evaluating his new officers and deciding their fates. And with a force of Imperial Fists allied to their cause, Perturabo sees the perfect opportunity to teach his new warriors the difference between the stone of the VII Legion and the Iron of his own.

As the Imperium of Mankind spreads across the galaxy, bringing all of humanity into its embrace, the advance is spearheaded by the primarchs, superhuman sons of the immortal Emperor. Each of these heroes is a warrior born and a leader bred, but darkness lurks in the hearts of some and threatens to tear apart all that they have worked to build. This audio drama anthology contains three full-cast tales, starring the primarchs Konrad Curze, better known as the sinister Night Haunter, and Perturabo, the Lord of Iron.

For long years, the White Scars have fought for the Imperium, bringing worlds to compliance. But when a new project, to embed psykers in the Space Marine Legions, seems likely to come to fruition, Jaghatai Khan must decide if he will comply...Listen to it because Chris Wraight returns to the Khan of Khans with a tale set at the height of the Great Crusade and showing the momentous decisions that, in some ways, led to the darkest events of the Horus Heresy.

Legends abound of the glorious - or infamous - deeds of the emperor's sons. Yet almost nothing is known of Alpharius, the most mysterious of them all, for the lord of the Alpha Legion is unparalleled in the art of obfuscation. Such are his gifts of secrecy and deceit that even his rediscovery has remained an enigma - until now. But when the tale comes from the serpent’s mouth, where do the lies end and the truth begin?

After a long and distinguished career defending the Imperium from its many enemies, Commissar Cain is enjoying a well-deserved retirement on Perlia, teaching in a schola progenium. But when a Black Crusade threatens the sector, all able-bodied citizens must rise to the defence, including Cain and his cadets. As the forces of Chaos overwhelm Perlia, can the wily commissar prove himself to be a real hero of the Imperium one last time?

Long before the coming of the Imperium, the realm of Ultramar was ruled by Roboute Guilliman, the last Battle King of Macragge. Even after learning of his true heritage as a primarch son of the Emperor of Mankind, he strove to expand his domain as efficiently and benevolently as possible, with the XIII Legion Ultramarines as his alone to command.

Lord of Chemos and bearer of the Palatine Aquila, Fulgrim, primarch of the Emperor’s Children, is determined to take his rightful place in the Great Crusade, whatever the cost. A swordsman without equal, the Phoenician has long studied the art of war and grows impatient to put his skills and those of his loyal followers to a true test. Now, accompanied by only seven of his finest warriors, he seeks to bring a rebellious world into compliance, by any means necessary. 

Of all the Emperor’s immortal sons, the primarchs, it is Konrad Curze whose legend is the darkest. Born in the shadows of Nostramo, a world of murderers, thieves and worse, is it any surprise that he became the figure of dread known only as the Night Haunter? Heed now the tragic story of the creature Konrad Curze, master of the Night Lords Legion, of how he became a monster and a weapon of terror. He who once served the Imperium saw the truth in a maddening universe and the hypocrisy of a loveless father, and embraced the only thing that made any sense - darkness. 

During the Great Crusade, it falls to the primarch Corax of the Raven Guard to humble the immense void-cities of the Carinae. Determined to bring these worlds into compliance, he unleashes the might of his Legion and a massive war host of the Imperial Army. But the lords of Carinae are well defended and without remorse....

The Indomitus Crusade has brought the Emperor's vengeance to thousands of star systems. The fleets and armies under the leadership of Roboute Guilliman fight for the survival of humanity against the forces of the Chaos Gods. But the traitors and heretics are not the only foe looking to destroy the rule of Terra. Xenos prey on human worlds in numbers not seen for millennia. Worst amongst them are the rampaging orks, whose migration conquests threaten to reverse the many gains of Fleet Primus. 

On the war-torn world of Croatoas, the armies of the Astra Militarum do battle with the twisted servants of the Ruinous Powers. Against the backdrop of this increasingly desperate conflict, tanker Hadeya Etsul finds herself consolidated into a Cadian regiment, and placed in command of the Leman Russ Demolisher Steel Tread. Haunted by nightmares, surrounded by a dysfunctional crew and striving to find her place amidst a proud and insular regiment with a culture so different from her own, Etsul must guide her crew to victory. 

Lord of the mystical and uncanny, Magnus the Red has long studied the ancient crafts of sorcery. A psyker without peer, save only for the Emperor himself, he commands his loyal followers of the Thousand Sons Legion in the Great Crusade, though also vigilant for any lost knowledge they might recover from the remains of dead human civilisations.