Changes

But this grand rebuilding was not to be. Scant weeks after initiating his plans, madness erupted in the sky as the [[Great Rift]] emerged and the [[Astronomican]] went out. Contact between the Blood Ravens detachments conducting Blood Trials and the ''[[Omnis Arcanum]]'' became next to impossible. Ships full of aspirants were lost to the warp. All over Sub-sector Aurelia, outbreaks of mutation and other psychic phenomena were endemic. Some Blood Ravens, psychically sensitive as many are, perished or were driven to madness by the surge in empyric energy. Those Librarians able to make some sense of the distortion reported terrible visions and nightmares, some even of the [[Great Unclean One]] [[Ulkair]] stirring in his prison in the core of old Aurelia. Entire Astropathic choirs died horrendous deaths as uncontrollable forces built up inside them to the point that their heads exploded under the expanding pressure. Worse still, many worlds under the Blood Ravens protection cried out for aid, with the entire Aurelian Sub-Sector now beset by Daemons. Ever a stubborn warrior of honor, Angelos ordered the Blood Ravens to try and intervene wherever they could and for many years the Chapter bled, isolated from the greater Imperium.{{Fn|9}}

==Relations with the Eldar==