Inquisitor Marcus Xill has had several run-ins with Acolyte Cell C2. The first of these encounters took place on the ill-fated Observation Station on the moon of Mono-10. At the conclusion of Cell C2’s investigation of the Xenos parasite that took control of the station’s personnel, it was Inquisitor Xill that arrived to secure the Acolytes and order the destruction of the Station. Classified documents, later discovered, hint at an ongoing conspiracy concerning Mono-10 and the possiblity of Xill having some type of involvement. Whether that involvement was as a conspirator or as an investigator of the conspiracy- the data is inconclusive.

The next time that the members of Cell C2 encountered Inquisitor Xill was on the dangerous investigation of the secret Tyranid research facility that was located on the Deathworld of Kenov III. This investigation would be the begining of the Acolytes’ lives as outlaws and radicals. Framed by unknown forces to be the scapegoats for the heretical operation on Kenov III, it was Inquisitor Xill who arrived at the base to take the Acolytes into custody and declare them as Criminals. The Acolytes’ were later able to escape and Inquisitor Xill was quick in issuing an Arrest Warrant for the Acolytes charging them with a number of offenses; additionally, the Acolytes’ Inquisitor, Inquisitor Sand, was placed under investigation.

Since the incident on Kenov III, classified documents have come to Inquisitor Sand’s attention concerning Xill and his involvement with a secret organization called the “Dominon Group.” What, or who, the Dominon Group is or are is unknown, as is the capacity of Xill’s involvement. What can be gathered from the avaiable information is that Dominon Group has ties to high levels of the Inqusition and Imperial Government and it appears to be concerned with the stability of the Imperium. To what methods they operate in pursuit of this mission are unknown at this time.

While Xill’s name and agents have come up in a number of Inquisition and Arbite investigations, other than the normal rivalry and criticisms that can be expected from rival Inquisitors and their factions, no serious episodes of heresy or criminal activity have been associated with Xill or his operations. Clearly more investigation is needed into Xill and his operations.