Daughter of the late Jacob Keyes, Miranda Keyes was the commander of the UNSC ship In Amber Clad in Halo 2. Following the Prophet of Regret's failed attack on Earth, she had the In Amber Clad follow his ship to a newly-discovered second Halo. In Halo 3, she leads a contingent of human forces in the defense of Earth and later commandeers the ship Forward Unto Dawn. She follows the Prophet of Truth to the Ark, a construct from which all the Halo rings can be fired. She is later killed in an attempt to prevent Truth from activating the rings.