Theories on Secret Histories

-Margin notes in the Record of Operation Divine Purge indicate that the missing third noble house of Asterion may have been House Fontarii. This theory is shared by Interrogator Montalban, who says that House Von Vardang—a noble house in the same region as Fontarii would have previously held territory—has legends of a much larger noble house that was exiled for heresy. It appears that House Von Vardang are the descendants of those that remained; they seem not to have inherited any heretical tendencies, and indeed, one of Montalban's Acolytes was from this lineage (regrettably, this was one that we killed).

-Thus far, evidence indicates that House Fontarii was accused of heretical activities in their Manufactorum operations; this led to the conflict of Operation Divine Purge. The heretical activity in question appears to concern Xenotechnology, rather than consorting with the Archenemy. Experiences with the planet lead to the conclusion that this involved the Asterii Devices.

-Interrogator Montalban believes that Fontarii was framed for heresy by Melichdoche Traquiel, and that she betrayed Captain Orpheon, resulting in his death during Operation Divine Purge. He further believes that Halcyon may still have ties to House Traquiel, benefitted by the House's possession of psychoconditioning technologies (acquired long ago from the Mechanicus). Indeed, if his theory is correct, keeping treachery a secret would be sufficent motive to employ such an organization as Halcyon.