Xenarites - Notable Xenarites: Epsilus Dammek-Yoth - Dammek-Yoth was an Arch-heretek and Xenarite from the Forge World of Stygies VIII, once greatly respected for their research on the Necron menace, who infiltrated the Ark Mechanicus Caestus Metalican, when Magos Dominus Faustinius took command of it and led an expedition to the Necron Tomb World of Silva Tenebris. Once the Explorators established a foothold on the stasis crypts of Silva Tenebris and the Necrons began to awaken from the Great Sleep, Epsilus used Tech-priests in the crew of the Ark Mechanicus that they had already corrupted to stage an uprising aboard the Caestus Metalican, in order to claim the Necrons' xenotech - and especially the knowledge of biotransferance - for their own.Scaevola - Like Epsilus Dammek-Yoth, Scaevola is a Xenarite Tech-priest from Stygies VIII who travelled aboard the Ark Mechanicus Caestus Metalican to Silva Tenebris in order to claim Necron technology. Unlike the Arch-heretek, however, Scaevola is a magos of the Adeptus Mechanicus in good standing, and openly joined Magos Dominus Faustinius' command staff in the role of Tech-acquisitor. She was in charge of understanding the Tomb World's bizarre technosorceries, and advising Faustinius on how best to exploit, study and appropriate them, while choosing the best relics and most useful information to be sent back to Stygies VIII. This role frequently saw Scaevola clash with Faustinius' fellow advisor Lector-Dogmatis Videx of Metalica, who was there to encourage the Battle-Congregation's hatred and contempt of the alien and all their works. Where Scaevola saw priceless knowledge that could advance Humanity's understanding by millennia, Videx beheld nothing more than heretical xenos blasphemy fit only for destruction.Callias Rhoda - Rhoda is a Xenarite Tech-priest from Stygies VIII who is a close peer with Magos Dominus Hyperion Ismene Themis IV. When Rhoda learned that Themis was journeying to the world of Tarnagua in the Sabbat Worlds sector to search for ancient weapons and wargear once wielded by the forces of Chaos during the Sabbat Worlds Crusade based on the records of that conflict kept by Mechanicus Adept Romulus Gwelt, he gave the magos two Kastelan Robots, Axiom-88 and Rhombus-4, led by the Cybernetica Datasmith Galenos, to aid him, which Hyperion gratefully accepted. However, the Xenarite is still Galenos's master, and any data that Hyperion discovered on Tarnagua was secretly transmitted by the Datasmith back to Rhoda.Hieronomus Tezla - Tezla was a Tech-priest native to the Forge World of Stygies VIII who was trained as a Rune-priest. Rune-priests specialised in perhaps the most arcane branch of scientific lore that was often frowned upon by the more mainstream branches of the Adeptus Mechanicus, a discipline known as "intuitive mechanics," which was the technical name for speculation and improvisation. Tezla excelled in these areas and was recruited into the ranks of the Xenarites native to Stygies VIII before his training was even completed. Tezla rapidly became an important member of their sect, showing a natural talent for locating and studying alien artefacts, and an an unusually inquisitive disposition for a servant of the Omnissiah. His examination of a crashed Fra'al spacecraft in the Tamahl Sector and his subsequent etheric-plasma theorums won him great renown amongst his peers. Similarly, his studies of Ork power field generators on the world of Polaris are considered to be the authoritative texts on the subject. Recently Tezla's interests were drawn to the Aeldari Maiden Worlds of the Halubra Fringe. He was last heard from while leading a heavily armed force of servitors to the moon of Eldrathon IV where he hoped to discover a buried Aeldari Warp Gate. He has also since become a Manipulus, a type of Tech-priest who is capable of storing and manipulating the energies of the Motive Force.