Changes

The world of [[Mezoa]], a [[forge world]] within the sub-sector, was founded during the [[Great Crusade]] by the [[Adeptus Mechanicus]], and its great foundries were said to have been built with the assistance of [[Ferrus Manus]].{{Fn|2a}} It later saw fighting during the [[Horus Heresy]], being attacked and briefly captured by the forces of [[Horus]].{{Fn|3}} Horus' forces also attacked the abandoned [[knight world]] of [[Dark Haven]],{{Fn|3}} which had previously been the home of [[House Orhlacc]].{{Fn|2b}}

During the [[12th Black Crusade]], also known as the Gothic War, the [[Acheron Heavy Cruiser]] ''[[Chaos Eternus]]'' was destroyed in fighting over the agri world [[Numitor (planet)|Numitor]], having been tracked down by way of its unique energy signatures.{{Fn|1c}} Elsewhere in the sub-sector, the Imperial vessels ''[[Vanguard]]'' and ''[[Indomitus Imperious]]'' were crippled in a hit-and-run raid by a Chaos fleet over [[Halamnet]]; the decommissioned cruiser ''[[Admiral Drake]]'' survived only through the attackers' desire for a swift retreat.{{Fn|1d}} [[Ork]] pirates were known to lurk in asteroid fields near the world of [[Denerair]]; in one engagement during the Gothic War, a pirate fleet annihilated a raiding party of [[Iconoclast Destroyer]] and [[Infidel Raider]] escort ships bound for the agri world.{{Fn|1e}}