The unimaginable has come to pass. The Golden Throne, that venerable artefact of forgotten technology which sustains the life-spark of the Undying Emperor of Mankind, is failing. The Adepts of Mars cannot repair it. This is the end of an era. The Astronomican will fail. Warp travel will be made impossible as the Dark Gods run rampant among across the galaxy.
On behalf of all human life, though it be far flung across the Segmenta of the galaxy, the High Lords of Terra undertake one final blow against the Legions of Chaos before the last light in the universe flickers and goes out.