It is the 31st millennium. Under the benevolent leadership of the Immortal Emperor, the Imperium of Man hasstretched out across the galaxy. It is a golden age of discovery and conquest. But now, on the eve of victory, the Emperor leaves the front lines, entrusting the great crusade to his favourite son, Horus. Promoted to Warmaster, can the idealistic Horus carry out the Emperor's grand plan, or will this promotion sow the seeds of heresy amongst his brothers?

The Inquisition moves amongst mankind like an avenging shadow, striking down the enemies of humanity with uncompromising ruthlessness. When he finally corners an old foe, Inquisitor Gregor Eisenhorn is drawn into a sinister conspiracy. As events unfold and he gathers allies - and enemies - Eisenhorn faces a vast interstellar cabal and the dark power of daemons, all racing to recover an arcane text of abominable power: an ancient tome known as the Necroteuch.

The Traitor Host of Horus Lupercal tightens its iron grip on the Palace of Terra, and one by one the walls and bastions begin to crumple and collapse. Rogal Dorn, Praetorian of Terra, redoubles his efforts to keep the relentless enemy at bay, but his forces are vastly outnumbered and hopelessly outgunned. Dorn simply cannot defend everything. Any chance of survival now requires sacrifice, but what battles dare he lose so that others can be won? Is there one tactical stroke, one crucial combat, that could turn the tide forever and win the war outright? 

Far out on the Eastern Fringe, the realm of Ultramar stands alone. Having weathered the Word Bearers' attack on Calth and the subsequent Shadow Crusade against the Five Hundred Worlds, the Ultramarines primarch Roboute Guilliman now draws all loyalist forces to Macragge as he contemplates a new future for mankind.

For a thousand years, the Sabbat Worlds have been lost to the Imperium, claimed by the dread powers of Chaos. Now, a mighty crusade seeks to return the sector to Imperial rule. And at the forefront of that crusade are Colonel-Commissar Ibram Gaunt and the Tanith First and Only - better known as Gaunt’s Ghosts. Trapped in the grinding trench warfare of Fortis Binary, the Ghosts find themselves drawn into a conspiracy to assassinate the crusade’s leader, Warmaster Macaroth.

After the betrayal at Isstvan, Horus begins his campaign against the Emperor, a galaxy-wide war that can lead only to Terra. But the road to the final confrontation between father and son is a long one - seven years filled with secrecy and silence, plans and foundations being formed across distant stars. An unknown history is about to be unveiled as light is shed on the darkest years of the Horus Heresy, and revelations will surface that will shake the Imperium to its very foundation....

On the world of Verghast, a grinding war between two hive cities - one loyal to the Imperium, the other fallen to the worship of the Dark Gods - is bolstered by the forces of the Astra Militarum, spearheaded by the Colonel-Commissar Gaunt and the Tanith First and Only. But bitter rivalries and treachery threaten to derail the defence of Vervunhive, and it falls to Gaunt to take command of the Imperial forces and forge victory from an almost certain defeat.   

A Great War is coming, and it will engulf the Imperium of Man. The Space Marines of the Alpha Legion, the last and most secretive of all the Astartes brotherhoods, arrive on a heathen world to support the Imperial Army in a pacification campaign against strange and uncanny forces. But what drives the Alpha Legion?

Hunted by his former allies as a radical and enemy of the Imperium, Inquisitor Gregor Eisenhorn must fight to prove that he remains loyal as he tracks down a dangerous heretic whom the Inquisition believes dead, the dread former Inquisitor Quixos. As he grows more desperate for victory, Eisenhorn uses ever darker means to achieve his goals, but how far can he go using the weapons of the enemy until he becomes that very enemy, and no different to the traitor he hunts?

On Monthax, Colonel-Commissar Ibram Gaunt and his Tanith First-and-Only await the order to advance into the sweltering jungle and drive the alien eldar from the world. As battle approaches, Gaunt walks the lines, raising his men's spirits and remembering their most heroic deeds - and the tragedies that have dogged Gaunt's Ghosts from the day of their founding on lost Tanith. The day that Gaunt became known as the Ghostmaker. 

Best-selling author Dan Abnett turns his hand to the mighty Space Marines! The war-torn far future is laid bare as Brothers of the Snake follows the exploits of the Iron Snakes Space Marines as they battle against the enemies of mankind. First appearing in the pages of Inferno! magazine, the Iron Snakes Space Marines quickly gathered a loyal following, and now they wage war in a full-blown adventure, battling aliens and heretics as they defend the Imperium. 

When the elite fighter pilots of the Phantine XX arrive on the beleaguered world of Enothis, they know it is a desperate hour. The forces of Chaos are closing in, and their final push could well wipe out all human life on the planet. Thousands of refugees flee the dark armies, and the infamous Chaos fighter pilot Khrel Kas Obarkon is always hunting the skies for more prey....  

Die Inquisition ist ein rachsüchtiger Schatten, der die Feinde der Menschheit gnadenlos und ohne Kompromisse zur Strecke bringt. Als Inquisitor Gregor Eisenhorn einen alten Feind stellt, kommt er einer finsteren Verschwörung auf die Spur. Er und seine Verbündeten bekommen es mit einer interstellaren Kabale und dämonischen Mächten zu tun, die einer arkanen Schrift von abscheulicher Macht nachjagen - einem uralten Folianten, bekannt als das Necroteuch.

Unaware of the wider Heresy and following the Warmaster's increasingly cryptic orders, Roboute Guilliman returns to Ultramar to muster his Legion for war against the orks massing in the Veridian system. Without warning, their supposed allies in the Word Bearers Legion launch a devastating invasion of Calth, scattering the Ultramarines fleet and slaughtering all who stand in their way. This confirms the worst scenario Guilliman can imagine - Lorgar means to settle their bitter rivalry once and for all.

Inquisitor Gideon Ravenor and his retinue are believed dead, and with shadowy forces moving against them, they'd like to keep it that way. Returning to the planet Eustis Majoris, they go undercover, investigating a brutal ring of smugglers moving stolen arcane technology within the Imperium. As they descend deeper into the organisation, it becomes clear that a terrible plot is unravelling. The ancient machines contain the unthinkable, and Ravenor must summon all of his wits to thwart the conspirators before the ultimate secrets of Chaos itself are laid bare!

Men of Tanith...do you want to live forever? On the forge world of Urdesh, the massed forces of the Imperial Crusade engage in a final bloody battle with the Archenemy commander known as the Anarch and his elite warriors - the barbaric Sons of Sek. A victory for either side will decide more than just the fate of Urdesh...it will determine the outcome of the entire Sabbat Worlds Crusade. 

After the success of their desperate mission to Salvation's Reach, Colonel Commissar Gaunt and the Tanith First race to the strategically vital forge world of Urdesh, besieged by the brutal armies of Anarch Sek. However, there may be more at stake than just a planet. The Imperial forces have made an attempt to divide and conquer their enemy, but with Warmaster Macaroth himself commanding the Urdesh campaign, it is possible that the Archenemy assault has a different purpose....

The Ghosts of the Tanith First-and-Only have been away from the front line for too long. Listless and hungry for action, they are offered a mission that perfectly suits their talents. The objective: the mysterious Salvation's Reach, a remote and impenetrable stronghold concealing secrets that could change the course of the Sabbat Worlds campaign.

David Tennant, Catherine Tate and Michelle Ryan are the narrators of this exclusive collection of original audio adventures. Join the 10th Doctor on journeys in time and space in these stories: 'Pest Control', 'The Forever Trap', 'The Nemonite Invasion', 'The Rising Night', 'The Day of the Troll', 'The Last Voyage' and 'Dead Air'. Written by Peter Anghelides, Dan Abnett, David Roden, Scott Handcock, Simon Messingham and James Goss.

Inquisitor Gregor Eisenhorn has spent his life stalking the darkest and most dangerous limits of the Imperium in pursuit of heresy and Chaos. But how long can a man walk that path without succumbing to the lure of the Warp? Is Eisenhorn still a champion of the Throne, or has he been seduced by the very evil that he hunts? Warhammer 40,000’s most beloved anti-hero finally returns in a stunning new novel that pits him against his oldest and most constant foe, and forces him to confront the true darkness of his own self.