Horus Heresy · atlas

014.M31 · The Siege of Terra · date approximate

The Unspoken Sanction

Place: Terra · Segmentum Solar

Fig. 1 · Place on the map

Pyrrhic loyalist victory ~1000 psykers are sacrificed to the Golden Throne to seal the Webway breach.

In the Webway tunnels beneath the Palace the Custodians, Sisters of Silence and the loyalist Mechanicum held back Chaos hordes, but the walls of Calastar were smashed by the Warp Titans of Legio Audax, and the city fell. Then the Unspoken Sanction was carried out: about a thousand captive psykers were sacrificed to feed the Golden Throne and seal the Webway breach — chaining the Emperor to the Throne even before his last duel.

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Sides

Loyalists

Special forces

Commanders

Traitors

Special forces

Type
Warp
Scale
4 of 5
Casualties
Not reconciled by the sources.

Significance

The Webway breach is sealed, but the Emperor is chained to the Golden Throne — the price of saving Terra.

Disputed in the canon

  • The culmination of the War in the Webway beneath the Palace during the Siege: Calastar fell, the breach was sealed by the Golden Throne.

Sources

  1. Lexicanum: War Within the Webway
  2. Fandom: Golden Throne
  3. The Master of Mankind (A. Dembski-Bowden)

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