Nemesis Subsector

The Nemesis Sub-sector is the Formosa Sector cube around Nemesis Tessera, the Inquisition dungeon-fortress close enough to the Eye to matter. Sector labels bounce between Nemesis, Formosa, and Belis Corona; this pin is the inner cube.

Black Legion cracked the fortress in the 2nd Black Crusade; in the 13th a fallen inquisitor opened a rift and Space Wolves bailed the conclave out. Chima Lomas and Ovaris Gulag share the dark.

The Nemesis Sub-sector still matters as an Ordo prison next to the Eye, not as a Grey Knights homeworld. Unofficial maps keep the formosa-sector parent and leave Tessera under nemesis-system.