The Vanishing

The Vanishing of the Emperor was a disastrous event in 000.M31 where the Bucephalus, the Emperor's flagship, entered the Warp above Terra, and failed to reappear at the Ullanor Sector as was planned. Heralding that something was wrong, the Astronomican went dark, throwing the Imperium into chaos. Though with the help of Malcador and [REDACTED], the Astronomican was restored, but many ships were lost in the Warp or emergency exited into random locations. The enemies of the Imperium, who had been put on the back foot by the Great Crusade, struck back with rebellions and xenos invasions.

The Imperial forces were thrown into confusion, with each commander taking whatever actions they viewed as most important. The Legiones Astartes, while stabilising the areas they were in, were numerically miniscule in the scale of the Imperium, and it took a whole year for the Primarchs to feel the Imperium secure enough to gather to make more permanent solutions. The Conclave of Terra would attempt to ask the problems that arose from the Vanishing, and the Vanishing changed the course of the Imperium irrevocably.

Actions of the Legions

 * Iron Revenants -
 * Crimson Lions - The Crimson Lions first moved to secure the Domain of Mycenae, abandoning their current campaigns to pull forces back to Mycenae. Once this had been achieved, Hectarion began a search for the Emperor, with no success before the Conclave of Terra.
 * Black Stars -
 * Red Eyes - The Red Eyes were driven into a rage by the loss of the Emperor, slaughtering their enemies in large-scale massacres. Theoderaf managed to reinstate calm in the legion, and the Red Eyes concluded their campaigns and made for Certus Minor and Terra. Having received orders from Malcador to stabilise key areas, the Red Eyes spread out to cover as many worlds as possible.
 * Halcyon Wardens -
 * Shadow Warriors -
 * Monastic Ascendants -
 * Godslayers -
 * [REDACTED] - Rumours state that it was at this time that the [REDACTED] disappeared, with [REDACTED]'s last reported location being Terra.
 * Obsidian Guard -
 * Tempest Reavers -
 * Fire Keepers -
 * Sky Reavers - Maaparatiisi and the Aato System suffered greatly from the disappearance of the Astronomican, with intense warp storms erupting that cut off the system. Aato and the Sky Reavers battled to return home to save their home system, and it took nearly the entire year for the whole legion to return. The system's reliance on the Imperium was revealed to Aato, as the lack of agri-worlds meant that famine spread quickly through the system.
 * Dune Serpents -
 * The Riven - Morrigar feels the loss of the Emperor during an attempt to psychically communicate with his father. He instantly orders his fleet to head to Terra, while having all other Riven strikeforces speed up their compliance actions. During the time before the Conclave, the Riven shuttle suppression forces across the Imperium, keeping the peace and destroying rebellious elements of the populace.
 * Stalking Leopards -
 * Warriors of Peace - The Warriors of Peace were little perturbed by the disappearance of the Emperor, calmly conducting their campaigns and moving to secure the Han System with their well-known blank demeanour. The General began to consider the implications of the Emperor's disappearance, and what opportunities could be exploited to his advantage.
 * Star Lords -
 * Alabaster Order -

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