This archive tracks four layers. A record present in 1 of them (M41) is silent in the rest, and says so.
The Horus HeresyM30–M31
[RECORD LOST]
No record for this location in The Horus Heresy.
Position in this era: [RECORD LOST].
Age of the ImperiumM32–M40
[RECORD LOST]
No record for this location in Age of the Imperium.
Position in this era: [RECORD LOST].
The 41st Millenniumpre-Rift
imperium
Imperial cruiser in Inquisitor Nyxos's blockade of Chaeroneia
An Imperial cruiser requisitioned by Inquisitor Nyxos of the Ordo Malleus. In 999.M41 Justicar Alaric investigates the newly returned world of Chaeroneia from aboard her, at the heart of the small Imperial blockade the Adeptus Mechanicus explorator ship Exemplar then joins.
Position: Borosis System (Chaeroneia) Imperial cruiser commandeered by Inquisitor Nyxos, from which Alaric first studies Chaeroneia Cited in Dark Adeptus
Era Indomituspost-Rift
[RECORD LOST]
No record for this location in Era Indomitus.
Position in this era: [RECORD LOST].
Position
A mobile record: it carries a position timeline rather than a fixed point. The archive places it in 1 of the four eras (M41); each era section above carries that era's entry.
Books set here
1 title in the reading tracker touches this record. Titles link out to the tracker.
Every fact in this record, and where it came from. Editorial derivations say so.
identitymedium
wh40k.lexicanum.com/wiki/Alaric: No Lexicanum page of her own; Lexicanum full-text search for 'Tribunicia' returns only Alaric and Nyxos (read directly in a browser on 2026-10-03). 'While investigating the planet from space aboard the Tribunicia, the Adeptus Mechanicus explorator ship Exemplar joins the Imperial blockade'; https://wh40k.lexicanum.com/wiki/Nyxos (Retinue): 'he has requested the assistance of the Grey Knights, the Cruiser Tribunicia, the explorator Mechanicus ship Exemplar'. NAME-COLLISION CHECK: no index record uses the id or label.
positionshigh
m41, the Borosis System (Chaeroneia): Lexicanum Alaric (the investigation from orbit) and Nyxos.
classmedium
cruiser, per Lexicanum Nyxos; no hull class is published, so no archetype beyond the generic ship schematic is set.
erashigh
m41 only, the novel's era (999.M41). Allegiance 'imperium'.