Abaddon’s Black Crusades: Thirteen Wars on the Imperium

How does a warlord lose twelve wars and still bring the Imperium to the edge of ruin? The comfortable reading of my archive holds that Abaddon the Despoiler has been thrown back into the Eye of Terror time after time, each Black Crusade another failure. Read the ledgers with care, reader. Each crusade took something: a daemon sword, a saint’s bones, a fortress that guarded the Cadian Gate, a star-fort able to kill suns. This is the chronicle of the man, the Legion he forged, and the thirteen wars he has waged on mankind, recorded as faithfully as the fragments allow.

The First Captain of the Luna Wolves

Before he was the Despoiler he was Ezekyle Abaddon, a son of Cthonia, a world of lawless gang-warrens that gave the XVI Legion its recruits. In the Great Crusade that Legion was the Luna Wolves, and Abaddon rose to command its First Company, with the black-armoured Terminators of the Justaerin at his call. He sat in the Mournival, the four-captain council closest to the primarch Horus Lupercal. After the Ullanor Crusade, where the chronicle says Abaddon alone survived a speartip assault on the Ork warlord Urrlak’s bodyguards, the Emperor renamed the Legion the Sons of Horus. That honour, and Horus’s elevation to Warmaster, only confirmed for Abaddon what he already believed: his father was the greatest of the primarchs, and his Legion the first among all Legions.

Heresy and the Talon

The fall began on the moon of Davin, where Horus was struck down by a cursed blade. Desperate to save him, his sons carried him to a warrior-lodge whose priests secretly served the Dark Gods. The body was healed and the soul was lost, and the Black Legion’s own chronicle is merciless on the point: Abaddon’s efforts to save his primarch helped to damn him. When Horus turned on the Emperor, Abaddon followed without doubt. On Isstvan III he led his company against the loyalist survivors of the virus-bombing, and at the Siege of Terra he took the First Company and the Justaerin into the Emperor’s Palace itself.

Then came the psychic howl that every Son of Horus felt at once: the Warmaster was dead, slain by the Emperor aboard the Vengeful Spirit. Abaddon reached the flagship and secured his father’s body. He tore the lightning claw we now call the Talon of Horus from the dead primarch’s arm, fixed it to his own, and swore vengeance. Seeing that Terra was lost, he took the Vengeful Spirit, fought his way free, and led the broken Legion through the purges of the Scouring and into the Eye of Terror.

The Death of the Sons of Horus

The Eye did not welcome them. The chronicle tells of a Legion rotting in grief: Abaddon, broken and sick of war, wandered off alone on what the records call his Dark Pilgrimage, while the survivors raised a fortress on the graveyard world of Maeleum and hung Horus’s preserved body in a tomb of bone-white stone, worshipping it. In time the Emperor’s Children and their allies stormed Maeleum and stole the corpse, and with the help of the flesh-crafter Fabius Bile they grew clones from it. Abaddon returned in time to watch the ruin from afar. He brooded in the empty tomb, then hunted down every rival captain until he alone commanded. He tracked Bile’s laboratories, and there the Legion destroyed the clones one by one. When Abaddon slew the prime clone, the chronicle says, the Sons of Horus died with it.

The novels give a closer view. In The Talon of Horus, the sorcerer Iskandar Khayon tells of a perfect clone of Horus, woken by Fabius and wielding the mace Worldbreaker, cutting through Abaddon’s companions until Abaddon catches the mace in the Talon and crushes it. The clone knows him and calls him ‘my son’. Abaddon drives the claws through its chest and whispers five words: ‘I am not your son.’ The two tellings differ in their details, but they agree on the meaning. The Black Legion was born from the killing of Horus, not from mourning him.

A Legion Without a Number

Abaddon cast off his father’s name and ordered his warriors to paint their armour black, striking out every old heraldry except the Eye of Horus. The chronicle explains the colour as both shame and devotion: black is the ancient colour of mourning, it honours the dead primarch without speaking his name, and it reminds every warrior that Horus failed. Then Abaddon opened the ranks. Any warrior, from any Legion, might join the Black Legion if he swore allegiance to Abaddon alone. Khayon puts it bluntly: the Emperor never founded the Black Legion, so it bears no number.

Around himself Abaddon built a dark echo of the old Mournival. The codex names his Chosen, including a Lord Ravager for the ground war and a Lord Deceiver to guide the fleets, and a Terminator bodyguard called the Bringers of Despair. Khayon’s memoir calls the inner circle the Ezekarion, the only souls allowed to speak the Warmaster’s name. Many primarchs had become daemons; the chronicle says Abaddon refused that path, since it would have bound him to the Warp. The archives disagree on timing. One older account has Abaddon renaming the Legion during the retreat from Terra, while the Legion’s own chronicle places it after the clones were purged.

The First Black Crusade

When the Despoiler came back, he came at the head of the largest traitor host seen since the Heresy. The chronicles cannot even agree on when: one account says decades passed, the other says five centuries. Worlds near the Eye fell to slaughter, and only Cadia’s fortresses held firm. The Imperium had to send many of the new Chapters of the Second Founding, and only they and the Titan Legions finally stopped the tide.

Abaddon’s own prize was not a world. Using a hidden Warp-path that bypassed the Cadian Gate, he reached Uralan and went into the Tower of Silence, which daemonic lore said held the secrets of the gods. In the labyrinth below, a silent figure wreathed in golden light led him to a shard of darkness, and from it he drew the daemon sword Drach’nyen, which daemons call the Thorn in Reality. Both the older and the newer accounts tell of the golden guide, and neither names him. It was after this war that he took the title Warmaster, and no one in the Legion disputed it.

Crusades in the Dark

The Legion’s chronicle gives each of the next wars a purpose. In the Second, Abaddon laid a curse into a moon of the naval base at Belis Corona, a curse that only woke centuries later as a mutating plague. In the Third, he sent the Daemon Prince Tallomin against the Cadian Gate as a feint while he destroyed the bones of Saint Gerstahl, whose prophesied return would have stood against him. In the Fourth, on the Cadian Gate world of El’Phanor, he split the adamantium gate of the Kromarch’s citadel with Drach’nyen and tore off the Kromarch’s head, leaving Cadia’s defences weaker. In the Fifth he burned Kasyr Lutien on Tarinth and sacrificed ten million of its people to call up Doombreed, greatest of Khorne’s Daemon Princes. Two Chapters, the Warhawks and the Venerators, died in the trap.

The pattern continues. In the Seventh, the Ghost War, he killed the Blood Angels captain Acrion on Mackan and traded his fallen brothers’ gene-seed to Fabius Bile. In the Ninth, rather than attack the naval fortress of Cancephalus head-on, he besieged the nearby world of Antecanis, which supplied officers to the Navy. That war dragged on for seventeen years and killed a whole generation of commanders. In the Tenth, Perturabo of the Iron Warriors opened an old Warp route out of the Eye, and Abaddon used it to probe Medusa, home world of the Iron Hands. I record these as the Legion’s chronicle does; some are known only from its pages.

The Gothic War

The Twelfth Black Crusade was the largest before the end: a war of more than thirty years in the Gothic Sector. Abaddon was hunting a weapon. With the Hand of Darkness taken from Purgatory and the Eye of Night taken from Ornsworld, he knew how to wake the Blackstone Fortresses, six ancient star-forts the Imperium had used as naval bases without understanding them. He cut the power to three and took them by boarding. Then he joined their beams and fired them into the star of Tarantis, which swelled and went supernova. An older account adds the Planet Killer, which destroyed the world of Savaven in an hour.

At Schindlegeist his luck ran out. An Imperial armada and an Eldar warhost trapped him and broke his greatest fleet. Yet he retreated with two Blackstone Fortresses. Imperial claims that both were destroyed, one archivist warns, are wishful thinking.

The Thirteenth and the Fall of Cadia

Then came the Thirteenth, the greatest of them all. The chronicle tells of Abaddon buying the help of the Daemon Primarchs one by one. I will not retell the war here. The archive holds its own chronicle of the Fall of Cadia, and I send the reader there. In brief: in 999.M41, when the fortress world still would not break, Abaddon threw the wreck of a Blackstone Fortress, the Will of Eternity, down onto Cadia. The world whose gate the Legion had tested since the First Crusade finally broke, and the Eye it had held shut began to widen.

Nor did it end there. On Vigilus, a world guarding the Nachmund Gauntlet (one of the few safe passages through the storms that followed Cadia’s fall), Abaddon teleported into battle against Marneus Calgar, Chapter Master of the Ultramarines. Drach’nyen cut through Calgar’s gauntlet and both his hearts. Calgar survived, the Vengeful Spirit was badly damaged and fled into the Warp, and the war went on.

The Pattern Beneath the Wars

So, has Abaddon failed? Even some of his own allies have wondered. The Night Lords grumbled that he had offered them victory before. But the chronicle is plain that each crusade served a larger plan, whose end is the death of the Emperor. A sword, a saint, a citadel, a sector’s worth of naval officers, a secret of the Blackstones, and at last Cadia itself: seen together, the wars look less like defeats than like a siege laid across ten thousand years. The Despoiler has always said what he thought of his father’s failure. His words are kept in the Legion’s own record: ‘Horus was weak. Horus was a fool.’ Abaddon means to be neither.

I close this ledger with the lamp turned low. My predecessors counted the Despoiler’s retreats and called them victories, and I cannot share their comfort. A man who has waited ten thousand years does not need to win quickly. He needs only to keep winning something, and one day to arrive.

Questions from the Archive

Who is Abaddon the Despoiler?

Ezekyle Abaddon was First Captain of the Luna Wolves, the Legion later renamed the Sons of Horus, and the Warmaster Horus’s favoured warrior. After Horus died at the Siege of Terra, Abaddon took his lightning claw and led the survivors into the Eye of Terror. There he destroyed the clones of his fallen primarch, remade the Legion as the Black Legion, and took the title Warmaster of Chaos.

How many Black Crusades has Abaddon launched?

Thirteen. The Black Legion’s codex-chronicle records twelve before the Thirteenth, which began at the close of the 41st Millennium and ended with the Fall of Cadia in 999.M41. Between them came countless lesser raids, which one older account calls too scattered to count as Black Crusades; that account also disagrees with the Legion’s chronicle over when the first one came.

Is Abaddon a clone of Horus?

Rumour says so. The Imperial archives repeat an old whisper that Abaddon was the Warmaster’s clone son, and Iskandar Khayon admits that the likeness was uncanny. Nothing in the records proves it. What the chronicles do agree on is that Abaddon hunted down and destroyed the real clones of Horus, grown by Fabius Bile, as the act that ended the Sons of Horus and gave birth to the Black Legion.

What was the Gothic War?

The Gothic War was Abaddon’s Twelfth Black Crusade, a naval war of more than thirty years in the Gothic Sector. By then he had learned the secret of the Blackstone Fortresses, ancient star-forts the Imperium had been using as naval bases. He seized three of them and used their combined power to destroy the star of Tarantis. He was defeated at Schindlegeist by an Imperial armada and an Eldar warhost, but escaped with two fortresses.

Where should I start reading about Abaddon and the Black Legion?

Start with The Talon of Horus by Aaron Dembski-Bowden, then its sequel Black Legion. They are narrated by Iskandar Khayon, a Thousand Sons sorcerer telling his story to Inquisition captors, and they cover Abaddon’s return from exile, the death of the Horus clone and the forging of the Legion. For the Heresy-era First Captain, begin with Horus Rising by Dan Abnett.