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.
Age of the ImperiumM32–M40
[RECORD LOST]
No record for this location in Age of the Imperium.
The 41st Millenniumpre-Rift
unknown
Mist-shrouded cemetery world; the frame the three tales are told inside
A commissar, an officer and a priest come to on a grave world with no memory of arriving, and take turns explaining themselves while mortuary-servitors close in. No published source places it.
Era Indomituspost-Rift
[RECORD LOST]
No record for this location in Era Indomitus.
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.
NOT ASSERTED. Review blogs call the world Silence, but neither Black Library nor Lexicanum states it as a planet name -- Silence is a SECTION TITLE. Lexicanum does carry a world called Silence, the Night Watch homeworld in Segmentum Obscurus, with no link to this book; naming this record Silence would wrongly merge the two.
offMaphigh
unplaceable: no published position, and the name itself is unconfirmed