Horus Heresy · atlas

004.M31 · The Fall · date disputed

Burning of Prospero

Place: Prospero · Segmentum Obscurus

Fig. 1 · Place on the map

Pyrrhic loyalist victory The Thousand Sons are almost destroyed, Prospero is scorched; but Magnus is saved by Tzeentch.

The Space Wolves, Legio Custodes and the Sisters of Silence fell upon Tizca, the “City of Light”, punishing the Thousand Sons for breaching the Edict of Nikaea. Magnus, aware that his sorcery had doomed the Legion, offered scarcely any resistance; Russ broke his back in single combat. The doomed Magnus struck a bargain with Tzeentch and carried the survivors to the Planet of the Sorcerers in the Eye of Terror.

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Legions

Commanders

Type
Siege
Scale
4 of 5
Casualties
Thousand Sons: almost to a man (1,242 survived); Space Wolves: ~25,000 killed, ~23,000 of the Imperial Army, ~30 million inhabitants.

Significance

The Emperor’s principal psyker Legion is destroyed; Magnus passes wholly into the service of Tzeentch.

Disputed in the canon

  • The FW fractional date 734.004.M31 and Lexicanum give 004.M31; “005–006” is merely a rough grouping from the Fandom table, not a genuine dispute over the year.

Sources

  1. Lexicanum: Burning of Prospero
  2. FW Black Book VII: Inferno
  3. A Thousand Sons / Prospero Burns (McNeill/Abnett)

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