Warden Eternal

"I am the Warden Eternal, Keeper of the Domain and her secrets. The Master Chief is called. But you? Your passage is denied."

- Warden Eternal

The Warden Eternal is a Forerunner Promethean AI and the keeper of The Domain and its secrets.

Biography
In 2558, during the Battle of Sunaion, the Warden Eternal was guarding a Guardian that contained John-117. When Fireteam Osiris attempted to assault the Guardian, the Warden Eternal appeared before them and incapacitated them with his hard light sword. The Warden Eternal then picked up Spartan Locke and told him the Master Chief had been granted access to the Guardian, but Locke and his team were not.

Appearances

 * Halo 5: Guardians