This archive tracks four layers. A record present in 1 of them (IND) is silent in the rest, and says so.
The Horus HeresyM30–M31
[RECORD LOST]
No record for this location in The Horus Heresy.
Age of the ImperiumM32–M40
[RECORD LOST]
No record for this location in Age of the Imperium.
The 41st Millenniumpre-Rift
[RECORD LOST]
No record for this location in The 41st Millennium.
Era Indomituspost-Rift
imperium
Cut off behind the Rift
The one book in the post-Rift corpus with no wiki article of any kind. What its published description says is that its heroine is trapped on the far side of the Great Rift; where, it does not say.
Position
This record has no real-space position and is not placed on the map. The reason is in the provenance below.
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.
Every fact in this record, and where it came from. Editorial derivations say so.
settingmedium
The tracker's own summary — 'Trapped in Imperium Nihilus after the Great Rift' — is the only description available; Lexicanum has no page for this book under any candidate name, which sprint 4 recorded as a genuine source gap rather than a resolver failure
offMaphigh
unplaceable: no world is named, and 'Imperium Nihilus' is a side of the Rift rather than a place