'''Ciaphas Cain''' was an [[Imperial]] [[Commissar]]. He was in active service in the last century of [[M41]], and was over 200 years old when he was recalled into service during [[Abaddons]] [[13th Black Crusade]], and it is certain that he survived more than a quarter of a century into [[M42]]. Propaganda made him out to be the hero of the Imperium circa late [[M41]] although in truth he was mainly focused on surviving. (However he differed to many other Imperial Commissars in that he would not readily sacrifice soldiers unless it ensured his own survival.) Cain tried his utmost to avoid engaging in actual combat, but would have to anyway to maintain his status as a Hero of the Imperium, which ironically, would involve him in more dangerous situations than any he would usually see as a Commissar. He was responsible for many successful campaigns throughout his career and retired to become a professor at a [[Schola Progenium]]. In [[M42]] his [[Cain Archive|Memoirs]] were published among the ranks of the inquisitionInquisition. They are Sequestered sequestered by order of the Holy Ordos, and are kept and organised organized as the [[Cain Archive]] by [[Ordo Xenos]] [[Inquisitor]] [[Amberley Vail]]