The Master Chief, humanity's guardian, stands once again on the threshold of a unforeseen conflict. A new threat has emerged from the shadows, casting a menacing presence over the galaxy. The fate of the known worlds hangs in the scales, and the Chief must confront this danger with his legendary determination. Ancient secrets will be brought to

Deep within the vast/unfathomable/expansive reaches of space, a chilling silence/void/emptiness envelops the once vibrant planet of Eridanus II/Reach/Installation 07. Centuries after the conflagration/tragedy/catastrophe that engulfed/consumed/ravaged Halo 303, its remnants hold a secret – a haunting echo/whisper/resonance from a time long gone.