Bungie writes as it reveals Destiny 2: Shadowkeep for September 17th 2019: New Nightmares have emerged from the shadows of our forgotten Moon. Called forth by haunting visions from her tormented past, Eris Morn has returned and unleashed something that once slumbered beneath the lunar surface – a long dormant power even she cannot control. Return to the Moon. Journey deep into a mysterious enemy citadel. Help Eris slay these nightmares before they reach out beyond the Moon to cast humanity back into an age of darkness.