In the jungles of Aztlan a deadly war of the shadows is being fought. And the Imperial Guard are losing. The alien t’au, though few in number, greatly outclass the soldiers of the Imperium and are taking a serious toll on their forces. A call for aid is answered by the fearsome Mortifactors Chapter, who come to the world full of grim purpose. Adoni, an unblooded neophyte yet to earn his place, is amongst the war party. As the Mortifactors descend into the jungle vastness, they hunt for a killer, one that will not die easily but that whom Adoni must slay if he is to become part of the Chapter and a Taker of Heads.

After seven years of bitter war, the end has come at last for the conflict known infamously as the Horus Heresy. Terra now lies within the Warmaster’s sights, the Throneworld and the seat of his father’s rule. Horus’ desire is nothing less than the death of the Emperor of Mankind and the utter subjugation of the Imperium. He has become the ascendant vessel of Chaos and amassed a terrible army with which to enact his will and vengeance. But the way to the Throne will be hard as the primarch Rogal Dorn, the Praetorian and protector of Terra, marshals the defences.

For Ianthe, war is all too familiar. A former soldier in the Astra Militarum, she now serves Inquisitor Covenant as an agent of the Throne. Her first mission sees her investigating a cult called the Children of Eternity. Falling foul of the local Enforcers, Ianthe soon learns that war in the shadows is seldom straightforward and that the local, angry law-keepers are the least of her troubles.

Borealis Four has fallen under the sway of an insidious Chaos cult and its dense jungle terrain makes it the ideal battlefield for the infamous Colonel Straken and his platoon...or so it seems.

In the far reaches of Imperial space, a ferocious warp storm approaches an Administratum world, cutting off the entire planet from the rest of the Imperium. As their towering grey spires are punished by endless rain, countless administrators, tithe-masters, and book-keepers are forced to evacuate. Among them is Greta, a lowly data-drone with a terrible secret, wanted for questioning by the sadistic Imperial interrogator Stefan Crucius. As disaster strikes and the pair are left stranded in the depths of the drowning city, captor and captive must cooperate.

Sons of the primarch Roboute Guilliman, the Primaris Ultramarines are peerless warriors whose sworn duty is to protect mankind from the predations of the xenos and the foul traitors of the Heretic Astartes. In a galaxy riven by eternal war, they and the other armies of the Imperium are all that stand between mankind and damnation. Their ship damaged by warp storms, the Ultramarines of strike force Cassian make for Kalides Prime. Also within this book is a host of awesome short stories to give you a flavour of the many warring armies that exist within the worlds of Warhammer 40,000.

On the world of Solennes, the battle between the forces of the Imperium and the heretics has become a stalemate of seemingly eternal artillery bombardments. The land is devastated, and the attempts to gain ground by either side end in disaster. Morale is low, and when Trooper Arehn is caught apparently fleeing the front lines, Commissar Selander does not hesitate in condemning him to a very public execution. When Selander starts to see Arehn after his death, he follows the apparition, wracked by doubts - but what will he find?

While voyaging through the depths of the warp, the infamous blademaster Lucius the Eternal is challenged by a servant of another god - a champion of the old Death Guard Legion, no less. Keen to remain dominant over his preening and ambitious rivals in the Cohors Nasicae, Lucius takes up his sword without a second thought...but could an unfeeling daemonhost of Nurgle, or the voices inside his own head, be the undoing of his Slaaneshi curse?

On the war-torn world of Armageddon, Gabriel Seth and his Flesh Tearers accompany an Imperial inquisitor and her retinue on a mission of vital importance. But the inquisitor has a hidden agenda that could imperil not only Seth's mission but the very existence of his Chapter...unless he takes drastic action.

In the sprawling Imperium of Mankind, everyone serves the Emperor in their own way. From the inquisitors who hunt the hidden enemies of humanity in the dark places of the galaxy to the brave soldiers who stand on the front line, and the Imperial Assassins who can change the tides of war with a single shot, each has a part to play in preserving the Imperium. In this audio anthology, three of these disparate heroes are put to the test, each facing a personal crisis that will see them either fall to darkness, or rise to continue doing their duty in the Emperor's name.

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.

For many long years, Gabriel Seth has led the Flesh Tearers to war. Master of a dwindling Chapter, he has made many enemies in his unceasing battle to keep his warriors alive - and now those enemies conspire against him, luring him to a remote world in order to end his leadership and life in the most violent and bloody way possible: Gabriel Seth is to be assassinated. But can even an Eversor Assassin kill one of the deadliest warriors in the entire Imperium?

The wind screams. The dark night is freezing. Vossk, a Vostroyan Firstborn, shrinks into a rock against a howl of memories. Having disgraced himself by deserting his post during a terrifying encounter, Vossk had resigned himself to penal servitude, though yearned for the chance to redeem himself. But in the 41st Millennium, such dreams are hollow when a man’s reality has been shaken to his core. Found in the shadows of a pitiless cave, Vossk relives his tale to his rescuer....

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 Deathwatch - black armoured bastions of the Imperium, drawn from among the various chapters of the Adeptus Astartes to stand vigilant against the insidious alien threat - investigate a genestealer taint.