The Horus Heresy

As one of the many staging grounds for the forces serving in the Great Crusade, the verdant world of Tallarn has long served as a transfer point for the personnel and war machines of the Imperial Army. Now, destroyed by a deadly virus-bomb attack launched by the battered Iron Warriors fleet, the entire world is reduced to a toxic wasteland where the survivors must fight to defend what little remains of their home.

In the immediate aftermath of the Word Bearers' attack on Calth, survivors from both sides were driven into the subterranean arcology shelters by the tortured Veridian star. While their primarch Roboute Guilliman had planned for many seemingly unthinkable eventualities, the Ultramarines now face a new war in the underworld - could Steloc Aethon, renowned captain of 'the Honoured 19th' Company, be the one to lead them to ultimate victory over the traitors?

After the horrors of Isstvan, the XVIth Legion destroyer-class Grey Talon now flies under a loyalist crew on a campaign of retribution and vengeance, using her original colours to strike covertly at isolated traitor forces. Commanded by Bion Henricos of the Iron Hands, the ship is also home to many disgraced White Scars who have taken death-oaths to seek atonement. But tensions run higher with each new engagement and, without a wider strategy to guide them, the crew will surely come to a sudden end.

The galaxy is divided, but while his armies prepare for battle, the Emperor himself remains curiously absent. In his place stands Malcador - legendary Sigillite, First Lord of Terra and regent to the throne - now arguably the single most powerful man in the Imperium. Army officer Khalid Hassan reports back to the Palace after a disastrous secret mission into the wastelands of Gyptus but soon learns an awful truth about the destiny of mankind. Where do Malcador's true loyalties lie?

Soon after word reached Terra of Horus' nascent rebellion, Mars fell. Rogue elements within the Mechanicum priesthood, stirred by the Warmaster's promises of independence and prosperity, turned against the Imperium and forced the primarch, Rogal Dorn, to order an impenetrable blockade of the Red Planet. Now it has become clear that the corruption has spread too deep, and that more drastic measures must be taken if the Forge World Principal is to be reclaimed.

The primarch Angron: gladiator-king and Horus' lunatic attack dog. Never having hidden his resentment for his brothers, he now carves a bloody swathe through the galaxy in the Warmaster's name, with the Heresy providing a convenient excuse to indulge his love of brutal warfare. When they are tasked with a secretive mission alongside the Word Bearers Legion, the World Eaters' violent tendencies soon attract the attention of xenos raiders, troubled by the portents surrounding the primarch's berserk fury.

Bloodied but unbowed, the Raven Guard and the Iron Hands fight on. In the wake of the Dropsite Massacre, the shattered Legions are still prepared to bring the fight to Warmaster Horus and his traitorous allies. On the doomed forge world of Cavor Sarta, two veteran warriors of the Imperium strike deep into the heart of the Dark Mechanicum's territory. With bolter and blade ready to cut down any who cross their path, they will seek out the enemy's most valued asset: the mysterious 'Kryptos'.

Since the near-destruction of the Iron Hands, Raven Guard and Salamanders on Isstvan V, scattered warbands from these 'shattered Legions' have waged a guerrilla war on Horus' forces across the galaxy. Now, the crew of the Sisypheum are drawn into a covert assault on a hidden Alpha Legion outpost - an assault orchestrated by none other than the infamous warleader Shadrak Meduson himself. But what does Meduson really hope to make from such a bold move against the sons of Alpharius, arguably the undisputed masters of deception?

After the destruction of Monarchia and the Emperor's reprimanding of the Word Bearers Legion, the primarch Lorgar spent many long years searching the stars for the universal truths of the cosmos - when he finally came to gaze deep into the Eye of Terror, with grim inevitability he found that the Eye stared back.

The Navigator Nisha Andrasta has served the XIIth Legion for over a century. She saw the War Hounds reunited with their progenitor, Lord Angron. She witnessed the rebirth of the Legion as the World Eaters. She looked on in confusion and horror as the primarch joined Horus's rebellion, and now she has seen him betrayed by Lorgar Aurelian, becoming the maddened monster he was always destined to be.

As the epic battle for Terra rages and the future of mankind hangs in the balance, former Knight Errant Nathaniel Garro fights among the ashes and fire of the embattled Imperial Palace as the shadow of Horus Lupercal's triumph looms. From the brutal betrayal at Isstvan to the desperate flight of the Eisenstein, through his missions as Malcador the Sigillite's Agentia Primus, Garro's path has drawn him inexorably towards a destiny that can only end in bloodshed.

Fighting alongside the Raven Guard Legion, Marcus Valerius of the Therion Cohort has long scorned those who seek to deify the Emperor. But recent events have made him doubt his cast-iron convictions, and as his forces lines up against an overwhelming enemy force, a flash of inspiration leads him to question whether or not there are greater forces at work in the universe....

For more than 200 years, the armies of the Emperor of Mankind fought to reconquer the galaxy - led by the superhuman primarchs, the Space Marine Legions brought countless worlds back under the rule of ancient Terra. Now Horus, once honoured Warmaster and favoured son of the Emperor, has been corrupted by the whispered promises of Chaos. At his command the Imperium is torn apart by a terrible and bloody civil war, the likes of which the galaxy has never seen....

The Dark Angels and the Night Lords fought one another to a bloody stalemate during the Thramas Crusade, leaving the First Legion scattered and under-strength. Back on Caliban, those Dark Angels loyal to Luther begin to grow impatient for a return to past glories, allowing the corruption at the world's heart to spread.

A fugitive stalks the shadows of the Petitioner's City. Though his fellow Outcast Dead are no more, the lone wolf Severian still intends to escape from Terra by any means possible - but the enigmatic hunter Yasu Nagasena is in pursuit. As news of the massacre on Isstvan V continues to spread and Severian's trail doubles back to the place where it all began, both he and Nagasena must face some uncomfortable truths - and an even more uncertain future.

While the war rages on across the galaxy, for many on the Throneworld of Terra it exists only in hearsay. But in the course of her daily duties, humble adept Katanoh Tallery discovers evidence of a conspiracy within the monolithic Administratum - surely, this can only be the precursor to a traitor attack on the Solar System itself? Fleeing into the shadows, she soon finds herself at the mercy of the mysterious Knight Errant Nathaniel Garro. Will this stalwart defender of mankind be her saviour, or her executioner?

The ravaged world of Tallarn now plays host to the greatest armoured conflict in the history of mankind, with the bitter and vengeful Iron Warriors leading warhosts of tanks and Titans across the befouled plains. In desperation, a covert team of Imperial Fists resort to seemingly unthinkable measures in order to regain the upper hand - but will their mission to seize the macro-transporter Eagle's Talon ensure victory or merely spell doom for their loyal allies on the surface below?

Since he was crippled by rebel treachery on Sixty-Three Nineteen, Maloghurst the Twisted has continued to serve Warmaster Horus as his closest aide and confidant. His loyalty has remained constant, but the XVI Legion has changed. Rivalry and personal ambition run rife, and although Horus' authority is supreme, his equerry's is certainly not. When a daemonic plot to infest the Vengeful Spirit comes to light, Maloghurst reluctantly turns to the few allies he has left: the mysterious Davinites.

Nathaniel Garro - loyalist Death Guard, and hero of the Eisenstein - has found a new calling in his service to the Emperor. Surrounded by a cloak of secrecy, Garro travels the galaxy in pursuit of his new goal. His quest will lead him to heart of the most destructive warzones and reveal a secret that will change the course of the Horus Heresy itself....

As Calth burns, the Battle Titans of the Fire Masters legion take to the streets of the city of Ithraca, ready to massacre the fleeing civilian population in the name of their new, dark masters. But the remaining loyalist engines of the Legio Praesagius - the True Messengers - still stand ready to defend the Imperium, even in the face of almost certain death. With the nearby Ultramarines forces scattered and lost, the people of Ithraca must fend for themselves as gigantic war machines unleash apocalyptic weaponry across the ravaged skyline....