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.

Ahriman is thrust into a deadly conflict with a creature of darkness whose cunning and thirst for power are the equal of his own - the first daemon prince, the dreaded Be'lakor.

It is the 32nd millennium, and the Imperium is at peace. The Traitor Legions of Chaos are but a distant memory, and the many alien races that have long plagued mankind are held in check by the Space Marines. When a mission to exterminate one such xenos breed on the world of Ardamantua draws in more of their forces, the Imperial Fists abandon the walls of Terra for the first time in more than a thousand years.

War rages in the Caradryad Sector. Worlds are falling to madness and rebellion, and the great war machine of the Imperium is moving to counter the threat. Amongst its agents is Inquisitor Covenant. Puritan, psyker, expert swordsman, he reserves an especial hatred for those of his order who would seek to harness the power of Ruin as a weapon. Summoned to an inquisitorial conclave, Covenant believes he has uncovered such a misguided agent and prepares to denounce the heretic Talicto before his fellows.

The shrine world of Divinatus Prime has become lost to the light of the Astronomican, and no ship can piece its veil. Only the Lord of Death himself, Blood Angels Chief Librarian Mephiston, has any hope of discerning the fate of this once pious world. After enacting a powerful blood ritual, Mephiston and an honour guard of his fellow Blood Angels reach the stricken shrine world to find it seized by religious civil war. Each faction fights for dominance of a potent artefact, the Blade Petrific, said to be wrought by the Emperor Himself.  

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 centuries, Prince Maesa of the nomad clans has wandered the Mortal Realms. Exiled from his people for the crime of loving a human woman, Maesa's woes were compacted by bereavement—for human lives are but brief sparks compared to those of the aelves. Ever since his beloved Ellamar's death, Maesa has quested tirelessly in search of a means to return her to his arms. Now, accompanied by his spite companion Shattercap, Maesa nears the end of his quest—single-mindedly daring the deserts of Shyish, the fury of slumbering demigods, and the wrath of daemons to revive his true love.

The skitarii are the soldiers of the Machine God, the tireless legions of the Adeptus Mechanicus. Holy warriors, they carry the word of the Omnissiah across the galaxy, destroying impure machines and spearheading the Quest for Knowledge. A discovery of ancient technology sends a skitarii legion into battle on a forge world overrun by Chaos. When a cataclysm cuts him off from his tech-priest overseers, Stroika must rally his forces and battle both corrupt machines and Chaos Space Marines.

Rebirth represents a new chapter in the history of the Salamanders. The Sixth Company set out for Heletine, where Brother-Captain Drakgaard's warriors will face the might of the Black Legion in a battle. But there is more to this Promethean War than conquest, and only as the conflict grinds on are the true motives of the enemy revealed....

Deep beneath the oceans of Ghyran, in kingdoms forgotten by gods and time and overlooked by the ravages of Chaos, the Idoneth Deepkin endure in bitter solitude. However, the Jade Throne of Briomdar sits empty, its long isolation threatened as never before in its history. The Everqueen’s warsong awakens the forests of both land and sea, and everywhere the diseased knights of Nurgle fight to the last foetid breath for the verdant Realm they claim as theirs. But for Prince Lurien this time of peril is one ripe with opportunity.

In the Pandorax System, on the death world of Pythos, an ancient secret that has laid buried for millennia. Ignorant of this terror, troopers of the Catachan 183rd, stranded on Pythos, find themselves under attack by the forces of Chaos. Daemons in their thousands flock the sky, and none other than Warmaster Abaddon leads the attack. With the Death Guard and Black Legion arrayed against them, the Catachans appear to be doomed, until salvation arrives in the form of the entire Dark Angels Chapter. But what is the so-called 'Damnation Cache'?  

Holy warbringer of the Legio Metalica, the Imperator Titan Casus Belli has routed armies and levelled cities over 10,000 years of service in the name of the Machine God. As war engulfs the Dark Imperium, this mechanical god of battle arrives to destroy the renegade armies and tech-priests of Nicomedua. At the head of a battlegroup of Titans, Imperial Knights and skitarii, Casus Belli must defeat tainted war engines, Traitor Legionnares and armies of cultists.

There are many secrets in the dark places of the Old World. From the cities of the Empire, where men huddle together in defiance of the darkness that sweeps across the land, to the vast, savage forests that house all manner of terrible beasts, everywhere you look there is a dark tale or ancient legend waiting to be unearthed. For the vampire Genevieve Dieudonné, several of these ancient horrors and blood-soaked nightmares are about to come to light, as she is plunged into battles for her life and her very soul across three linked novellas. 

Neferata is besieged. To the east, the daemon prince Graunos gathers the legions of the Blood God, seeking to tear the Mortarch from her throne. To the south, Sigmar’s storm heralds the coming of the Anvils of the Heldenhammer, intent on pressing the God-King’s claim. All the while, an ancient enemy grows, hidden within Neferata’s lands. Never has her power seemed so fragile. But, within the dominion of bones, the Mortarch of Blood controls all, and even the champions of the Dark Gods will find themselves puppets in her schemes.   

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.