Adeptus Ridiculous

The Isstvan III Atrocity: The Heresy Begins

Mittwoch, 16. September 2026 · 1 h 14

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Horus Lupercal had a flawless plan to kick off his massive rebellion: send 100,000 loyalist Space Marines down to the surface of Isstvan III under the guise of compliance, sever their communications, and obliterate them with Life-Eater Virus bombs. The atmosphere would literally ignite, and 12 billion souls would evaporate in an instant. Clean, efficient, and devastating.
​Well, not quite. ​This week, Bricky, DK, and Kirioth dive headfirst into the blood-soaked tragedy of the Isstvan III Atrocity. We cover the desperate flight of Nathaniel Garro on the Eisenstein, Saul Tarvitz's heroic last-minute warning that allowed 2/3rds of the loyalists to seek shelter, and the agonizing final stands of legendary Astartes like Ancient Rylanor and Ullis Temeter.

Intro
The Isstvan III Atrocity
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