Fate of Maethrillian

The Battle of the Capital was a major conflict that took place on and around the Forerunner Capital.

Battle
At least 50 years prior to the battle, the Contender-class Artificial Intelligence Mendicant Bias had been assigned to a mission to locate and attack the Flood Gravemind. As part of this mission, he was given control of a Halo Installation and charged with conducting the first test of such a weapon. After the test, however, Bias disappeared with the ring and was not seen for decades.

Bias unexpectedly returned with the Halo to the Forerunner Capital after 43 years, turned rampant by the Gravemind and bent on the destruction of the Forerunner race. He infiltrated the Capital's defense systems, deactivated all Ancillas and security constructs, and held the Council hostage by overriding their armor and rendering them immobile.

Bias was temporarily deactivated by Bornstellar Makes Eternal Lasting, who was host to the memories of the Didact and issued a verbal failsafe code. The Capital was released from Mendicant's control, and began activating its defensive systems.

List of appearances

 * Halo: Cryptum