Horus Heresy · atlas

World · Segmentum Ultima

Eirene Septimus

Fig. 1 · Location on the map

Eirene Septimus is a world where at the Battle of Eirene Septimus (c. 010.M31) a detachment of survivors from the “Sisypheum” under a false “Meduson” was drawn by Alpharius (posing as Meduson) into a slaughter against legionaries of his own Alpha Legion who inclined to loyalism.

Category
World
Location
Segmentum Ultima
Significance on the map
1 of 5
Place confidence
Place reconstructed
Events
1 event

Place on the map

The place is reconstructed: the canon does not name it directly; the map places it from indirect evidence.

Grounds for placing the system exactly here on the map:

Russian source notes (1) RU
  • Alpharius-as-Meduson trap involving Sisypheum survivors — минорные театры; сегментум прямо не назван, восточный/осколочно-легионный театр по своду «Карты Ереси» (вывод свода)

Events in the system

Legions

Legions named in the system’s events:

Characters

Linked to the system’s events:

Sources

  1. Lexicanum: Shattered Legions
  2. The Seventh Serpent (novella)
  3. Atlas compilation · reconstruction
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