Fortress Orpheon

[Heavy Encryption]

-Fortress built by an Astartes Chapter—specifically, the Angels Encarmine—for Melidoche Traquiel, the first Planetary Governor of House Traquiel. Incredibly robust in defenses; front door appears to be operated by a gene-encoded locking mechanism that responds to the blood of some members of the Traquiel lineage (possibly only the biologically female descendants).

-Contains the true mausoleum of House Traquiel; many of the tombs and their mechanical preservation functions remain in operation, though some have failed due to lack of tending for more than a century.

-Location was lost 120±6 years ago; however, Anvephone Traquiel discovered its location at some point, and conveyed it's general coordinance to Vector van Flange such that the Magos could create a means to reach it. It appears that she used the Fortress as a secret and secure base of operations.

-It is likely that the Fortress was abandoned due to the presence of a (likely Cinquefoil) device—hereafter called the Null Singularity—deep below the main structure that emits an incredibly potent null psychic field, capable of inflict lethal levels of harm to those in proximity, and especially those in line of sight. The room containing the device is nearly toroidal in shape, with the center region—rather than connecting completely—coming to a lower and upper set of points (like a mirroring stalagmite and stalagmite) between which sits a tiny singularity; this point appears to be absorbing warp energies from shaped, pinhole rifts that sit at the points above and below it. Viewing the device instills a sense of vision and self being inexorably pulled toward the center—possibly, this is the mind's rationalize of the sensation that the soul is being pulled from the body, or possibly devoured in more extreme cases.