Horst - The Pillar of Spite Fulfilled: Aboard a Thunderhawk gunship requisitioned from the Malleus Rex, Greyfax, Horst and the Grey Knights made their way to an unknown Daemon World. They were protected from the daemonic forces of the Eye of Terror by an Aegis bubble created by their own potent psyker minds, and were guided all the way by Moriana's daemonic familiar, an impish blob of green and blue flame. Greyfax found herself tortured by the idea that she was going into battle alongside a servant of the Archenemy, and could not think of a way to adequately purge her soul of the sin.Once the Imperials passed through the upper atmosphere of the Daemon World their guide had directed them to, they discovered that its surface was dominated by a great, black thorn of a tower that seemed to briefly shimmer like crystal. The imp of flame called it Vastiagard, the Pillar of Spite Fulfilled, along with several other equally welcoming names.The Thunderhawk moved toward a spire lower on the tower, and the gunship came under attack by a mass of flying daemons clearly in service to Tzeentch. Moriana's imp directed the Thunderhawk through the horde of Neverborn to a parapet wide enough for the gunship to land. The rounds of the Grey Knight transport's Heavy Bolters had been anointed with the blood of Imperial Saints, which proved anathema to the daemons, blasting their flaming bodies into empyreal mist.Once the Thunderhawk had touched down, Greyfax led the undead Inquisitor and the fully-armoured Grey Knights out into the waiting daemonic horde, bringing down Neverborn with each blast of her Condemnor Bolter and slash of her Power Sword. After carving their way through the daemons, Greyfax and her companions entered the tower through a nearby portcullis, led by Moriana's chattering familiar. The remaining daemons were happy to leave them be, as what lay within the tower promised a fate far worse than whatever their tender mercies could deliver. The interior of the Pillar proved to be a twisting labyrinth, the only reality within that which the Imperials brought with them and protected within their ever-present Aegis bubble of psychic energy. Horst confessed he had a vague familiarity with the tower, but could remember nothing concrete about it.But the undead Inquisitor's memory was jogged as they entered a region of the Pillar that encompassed a vast space, a hall with a floor, walls and ceiling, yet clouds impossibly circled the countless pillars on high while purple grass lay underfoot. Horst finally remembered coming to the tower with Paladin Bellicus, the man whose armour he now wore, after his own squad of Grey Knights had fallen because Moriana had refused to give them any aid. At that moment, the vista of a hall sloughed off to reveal a hellish scene of human figures writhing in agony, tortured by horned daemons upon every device ever designed by the human mind to inflict pain. Upon closer inspection of the gruesome vision, Greyfax realised that her own image was among the agonised multitude.Then they met the ruling daemon of the dark tower. And he was dressed in the armour of an Imperial Inquisitor.There was one small difference, however. In place of his eyes, there were only black, festering pits.The undead Horst, finally regaining the full range of his memories, explained that the Daemon Prince had possessed his body at their last encounter, and in desperation, the Inquisitor had projected his own soul into his accompanying Paladin's body to cast himself back to the psychic beacon he had left behind on Savaven. But the Daemon Prince claimed the undead Inquisitor was a liar, and that Horst was the true creature of darkness who had fooled Greyfax.Moriana's fiery familiar suddenly danced above the Daemon Prince, egging the Imperials on to destroy Horst's eyeless, possessed body. The undead Inquisitor pleaded with them not to, claiming that if his companions destroyed the daemon, they would also destroy his mortal shell, condemning him to undeath forever.Instead, Horst believed there was another way. By combining the powers of their minds, the Imperials, psykers all, could drive the Daemon Prince from the body it was using as a shield and allow his essence to reclaim it.Agreeing to Horst's ploy, the Imperials cast their minds out beyond their bubble of reality into the Immaterium, the Grey Knights merging their life energies into one as they faced the daemon purely on the psychic plane. Behind them came Greyfax, maintaining the potent Aegis shield around their souls, while the spectral Horst confronted the powerful Daemon Prince who had stolen his mortal shell.But Horst proved unable to defeat his opponent and reclaim his body. He was cast, alongside the other Imperials, back into their bubble of reality, forced to become corporeal once more. The daemon still inhabited the corpse of Horst, while the Inquisitor remained trapped in the armour of paladin Bellicus. Defeated, Horst gave Greyfax permission to destroy his body and end the fight. Greyfax wasted no time in unleashing her Condemnor Bolter upon the Daemon Prince, even as it promised them endless secrets of power if they allowed it to live. Greyfax finally used her Power Sword to behead it and silence its insulting offers. At the same moment, Horst's own animate war-plate also collapsed to the ground, his soul apparently fled to the Warp at last with the loss of his tie to the physical realm. But within its broken skull, Greyfax discovered a black gem the size of her fist, surrounded by a haze of darkness -- the Eye of Night.Moriana had been right, in her own scheming way. Horst had indeed carried the artefact with him all along.Greyfax placed the Eye within a psychically-warded casket on her belt and left with the Grey Knights to return to the Imperium and present her prize to the Primarch. Moriana's daemonic familiar had already departed, and though the Inquisitor briefly felt a sense of victory despite Horst's sacrifice, it was quickly squelched by the knowledge of the choices she had made. There was a blot upon her soul that could never be erased, but she would continue to place her faith and hope of salvation in the Emperor despite her sins -- for the Emperor protects.