This archive tracks four layers. A record present in 2 of them (M41, IND) 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
Ark Mechanicus of Belisarius Cawl
A freighter-hulk grown into a city: manufactories and laboratoria to rival a forge world, its own shipyard slung under the keel, and a bow that detaches and flies down as a landing craft. Cawl built the Primaris Space Marines inside it over ten thousand years and kept them there in caskets.
Position in this era: [RECORD LOST].
Era Indomituspost-Rift
imperium
Ark Mechanicus of Belisarius Cawl
Mostly empty now — the armies went to Fleet Primus and the magi went out across the galaxy on Cawl's next project. Fabius Bile boarded it looking for the Sangprimus Portum, and left with something else.
Position: Macragge System (Macragge) Cawl's mobile laboratory and home for the Indomitus Crusade, working out of Ultramar Cited in Belisarius Cawl: The Great Work
Position
A mobile record: it carries a position timeline rather than a fixed point. The archive places it in 1 of the four eras (IND); each era section above carries that era's entry.
Books set here
2 titles in the reading tracker touch this record, 2 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.
classhigh
wh40k.lexicanum.com/wiki/Zar-Quaesitor 'a massive freighter-hulk and Ark Mechanicus of the Adeptus Mechanicus. It serves as the flagship and mobile laboratory for Magos Dominus Belisarius Cawl'
positionsmedium
wh40k.lexicanum.com/wiki/Zar-Quaesitor , cited to tracked books: Belisarius Cawl: The Great Work ch4–5 and Genefather ch8–28. Neither states a system for the ark as such — it is described as a roving kingdom
position-indomituslow
derived: the ark's published work in this era is the Indomitus Crusade and the making of the Primaris, both of which this dataset already anchors at Macragge through Guilliman. Docking it there is our editorial reading of a vessel canon deliberately keeps unlocated, hence the single position and no era-m41 entry
archetypemedium
catalogue entry 17, arcane industrial ark — the reference tag is this vessel by name, and the brief's discontinuous spine with a central reactor drum matches the detachable bow and underslung shipyard canon describes. The mesh lane did not build entry 17. 'battleship' is the nearest built family and is a poor fit; this is the one archetype assignment in this sprint that a new builder would clearly improve