The Fifth Black Crusade was a Chaos victory in 723.M36, when Abaddon the Despoiler lured two Space Marine Chapters into a trap and wiped them out with the help of a daemon prince. It’s also called the Tide of Blood, and it’s one of the clearest examples of how Abaddon fights: more than with force, but with planning and patience.
What was the fifth black crusade?
It was the fifth of Abaddon the Despoiler’s twelve Black Crusades, fought in the Elysia Sector of Ultima Segmentum. The campaign lasted through 723.M36 and ended in a decisive Chaos victory.
Abaddon didn’t just want to raid. He wanted to draw the Imperium into a sector-wide war, then spring a trap that would cost the Adeptus Astartes dearly. He got exactly that.
The trap at Kasyr Lutien
Abaddon spread his forces across a dozen worlds, ordering his warlords to burn cities and temples while his fleet kept the Imperial Navy tied up in void battles. The point was to make the Imperium send Space Marines.
When the Warhawks and Venerators Chapters arrived on Tarinth in full strength, Abaddon had already taken the ancient city of Kasyr Lutien. He ordered ten million citizens sacrificed, their blood channelled through the city’s canals into a vast lake of gore. That ritual tore open the Warp and brought through Doombreed, greatest of Khorne’s Daemon Princes.
Doombreed had a pact with Abaddon: the skulls of an entire Chapter in exchange for its service. Thousands of Bloodletters poured from the lake, and the Black Legion opened fire from prepared positions, cutting off any retreat. Both Chapters were destroyed, their gene-seed lost forever.
Forces and aftermath
The Imperial side included the Imperial Guard, Imperial Navy, Venerators, Astral Claws, Warhawks, and a Blood Angels force aboard the battle barge Eclipse of Hope. The Blood Angels ship vanished during the crusade and was listed as missing in action.
Chaos brought the Black Legion, the Flawless Host, daemonic legions, and the Gloomtalons warband, led by Haarken, who would later become Abaddon’s herald. The Imperium lost two entire Chapters. Doombreed was eventually imprisoned, but the damage was done.
| Side | Key forces | Notable outcome |
|---|---|---|
| Imperium | Venerators, Warhawks, Blood Angels, Astral Claws | Two Chapters destroyed; Eclipse of Hope missing |
| Chaos | Black Legion, Doombreed, Gloomtalons | Sector scoured; Doombreed later imprisoned |
Why the fifth black crusade matters
This crusade shows Abaddon at his most dangerous: he didn’t win by brute force alone, he won by making the Imperium react exactly how he wanted. The loss of two Chapters and a battle barge was a heavy blow, and the ritual at Kasyr Lutien proved he could tear reality open when it suited him.
It also introduced Haarken, a future herald of Abaddon, and cemented Doombreed’s reputation as a monster even by daemon standards. For anyone following Abaddon’s Long War, the fifth is a key example of his strategy.
Key facts
- The Fifth Black Crusade, also called the Tide of Blood, occurred in 723.M36.
- Abaddon lured the Warhawks and Venerators into a trap at Kasyr Lutien on Tarinth.
- Ten million citizens were sacrificed to summon the Daemon Prince Doombreed.
- Both Space Marine Chapters were destroyed, and their gene-seed was lost.
- The Blood Angels battle barge Eclipse of Hope disappeared during the crusade.
- Haarken, later Abaddon’s herald, led the Gloomtalons warband in this campaign.
FAQ
When did the Fifth Black Crusade happen?
It took place in 723.M36, in the Elysia Sector of the Ultima Segmentum.
Which Space Marine Chapters were destroyed?
The Warhawks and the Venerators were both wiped out. A Blood Angels force aboard the Eclipse of Hope also went missing.
Who was Doombreed?
Doombreed was a Daemon Prince of Khorne, summoned by Abaddon through a mass sacrifice. It was promised the skulls of an entire Chapter in exchange for its help.
Was the Fifth Black Crusade a Chaos victory?
Yes. The Imperium lost two Chapters, the Elysia Sector was devastated, and Abaddon achieved his objective of drawing in and destroying Space Marine forces.