This archive tracks four layers. A record present in 2 of them (HH, M41) is silent in the rest, and says so.
The Horus HeresyM30–M31
chaos
Crone world inside the Eye
One of the aeldari worlds that was at the centre of the Fall and is now inside the Eye of Terror. Perturabo and Fulgrim went into the Eye to reach it, and only one of them came out unchanged.
Age of the ImperiumM32–M40
[RECORD LOST]
No record for this location in Age of the Imperium.
The 41st Millenniumpre-Rift
chaos
Crone world inside the Eye
Still there, still in the warp's weather, still holding whatever the aeldari left.
Era Indomituspost-Rift
[RECORD LOST]
No record for this location in Era Indomitus.
Position
Map frame: 172, 292 in the archive's 0–1000 disk space (core at 500, 500).
Distance from the core: 388 units ≈ 41.3k light years, north-west of the galactic core.
Height above the disk plane: -4.1 units — invented thin-disk jitter, deterministic per record. No published source gives any location a z coordinate.
System: Iydris System
Books set here
1 title in the reading tracker touches this record, 1 of them as a primary location. Titles link out to the tracker.
derived: the infobox places it in the Eye of Terror, so it is drawn inside our Eye feature's radius rather than beside it. This is the one placement here that is constrained by another record's geometry