The Guardian investigates the connection between the Derelict Leviathan and the Moon's Nightmares.
Sorrow's Harbor, The Moon
Following Caiatl's failed ritual of severance, Eris asks the Guardian to investigate the connection between the Derelict Leviathan and the Moon's Nightmares. The Guardian travels to K1 Revelation and defeats the Nightmare of Arguth, the Tormented.
Eris Morn: This Nightmare is quelled. Buried in the screams of its death throes lies a call to the Pyramid. Calus must have used the relic in this place as a focusing point in lieu of the connections we've severed. To the Pyramid, Guardian.
Sorrow's Harbor, The Moon
The Guardian travels to the Lunar Pyramid and investigates a dead Legionary nearby.
Eris Morn: Calus's Loyalists. Egregore spores line their esophagus. They are freshly dead. Empty. I see now. Their lives were forfeit, spent as a cost to ferry Calus's mind across a vast distance, and hasten ingress to the Pyramid. Our foe is desperate. But that means our plan is working. I must speak with Caiatl. Return to me.