Periphery Sub-sector - A Fateful Deal: But Duke Severus I did not die the last of his line. Before he passed, he recounted his sad tale to his first-born son, and in the telling it must surely have been distilled into a hateful story of lesser men allying against one of whom they were jealous. The son passed the tale on to his son, and again the story was filtered in the telling until all that remained was a twisted kernel, only barely resembling the truth. Generation after generation of House Severus heard, and then repeated, this tale of doom, until in 779.M41 Duke Severus XIII assumed power over what little remained of his house. Unlike his predecessors, Severus the Thirteenth had managed to claw his way up the rungs of power in the Calixis Sector, drawing upon methods and means yet to be fully revealed. In 799.M41, he assumed the appointment to which he had worked his entire life, the position from which he might finally realise the dreams of his entire line. He ascended to the position of Lord Sub-Sector, the Adeptus Administratum prefect of the region his eponymous forebear had founded -- the Periphery.But in truth, Severus XIII could never have gained ascendancy over his peers to become the recognised Imperial governor of the Periphery without the aid of the Dark Eldar group known as the Children of Thorns. This outcast Dark Eldar Kabal, exiled from the Dark City of Commorragh, is made up of the dregs of Dark Eldar society -- escaped slaves, disgraced nobles, and defeated champions -- and its members are ever watchful for opportunities to gain weapons and slaves they can use to fuel their bid for a return to power in Commorragh. In aiding Severus XIII, the Children of Thorns Kabal has gained easy access to a region in which theImperium’s forces are unable to oppose their realspace raids. Thousands of men, women and children are dragged screaming back to the dark sub-reality sinks of the Dark City in the Labyrinthine Dimension of the Webway, yet there are those that question whether the kabal’s involvement in the wars of the Spinward Front might be more pernicious still. Some fear that the Dark Eldar might be working towards another agenda entirely -- one that can only bring more doom and disaster upon thewar-torn worlds of the Periphery and beyond.His ambitions echoing those of his progenitor, Severus XIII believed that the Periphery should be his, yet he knew that overtly declaring secession from the Imperium would cause the Sub-sector's Loyalist Planetary Governors to rise up against him and bring the force of the Imperium crashing down upon his head. Instead, he sought allies in the darkness spinward of the Periphery, his spies seeking out any who might lend him aid, no matter their price. Waiting in the darkness, his spies discovered the Dark Eldar of the outcast Children of Thorns Kabal, and vile pacts were made in exchange for the aliens’ lethal services.Severus XIII consigned entire Frontier Worlds to the Dark Eldar’s cruel mercies, ensuring that when realspace raids occurred, the sub-sector’s military reserves were always too distant to intervene. Xenos chattel-barques swollen with slaves delivered hundreds of thousands of human beings to their doom in the pits of Commorragh, while the court of Severus XIII gained a host of new veiled courtiers and black-eyed assassins.For over a standard decade, Severus and his cruel agent-allies worked tirelessly to cut the ties between the Periphery and the sector at large, one at a time, so that none even noticed as it was slowly transformed into his personal realm. PlanetaryGovernors resistant to corruption or subversion were quietly removed, but always the eight worlds closest to the border with the Malfian Sub-sector were maintained in a state of outward normality. The worlds spinward of them were entirely in the sway of the noble, who had at last attained his ancestor’s dream of an independent stellar empire of his own in all but name.