Board the Leviathan with Crow, Zavala, Caiatl, and Eris to stop Calus before it's too late.
Complete mission "Catharsis."
Flavor text
There's no time left. Calus threatens to activate the lunar Pyramid and only one final ritual can prevent him from accomplishing this goal. With the aid of Crow, Zavala, Caiatl, and Eris, you must storm the Leviathan and find the seat of Calus's power to bring an end to this situation before he can wield the power of the Pyramids.