Siege of Terra — After-Action Records

These after-action records document the Siege of Terra, the climactic battle of the Horus Heresy. Compiled by the Administratum in the centuries following the conflict, they cover the defense of the Imperial Palace, the breach of the Eternity Gate, and the final confrontation between the Emperor and Horus aboard the Vengeful Spirit.

Many sections remain heavily redacted, and the full truth of what transpired aboard Horus's flagship is known only to a handful of individuals.