Horus Heresy · atlas

006.M31 · The Isstvan Massacre · date approximate

Broken Key

Place: Medusa · Segmentum Obscurus

Fig. 1 · Place on the map

Traitor victory The Word Bearers with the Dark Mechanicum leave with their prize from Medusa itself.

The Word Bearers and the Dark Mechanicum raided Medusa, the home world of the Iron Hands, and managed to depart with their objective achieved — a bold strike at the world of the X Legion.

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Sides

Loyalists

Legions

Traitors

Legions

Special forces

Type
Battle
Scale
1 of 5

Significance

Shows the vulnerability of even the Legions’ home worlds in the early Heresy.

Sources

  1. Lexicanum: Broken Key

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