"It is as I feared. We were too late."
Eris has learned that the final severance ritual came too late. Caiatl's brazen and failed sever attempt was the time Calus needed to complete his plan. He has extended his full consciousness into the lunar Pyramid and has begun assuming control.
Yet there is still hope. Not all of Calus's power has merged with the Leviathan. There is still time to try one final—desperate—severance ritual at the seat of Calus's power to dislodge him from the Pyramid before the change becomes permanent.
Doing so will require the aid of Crow, Zavala, Caiatl, and Eris together.
Eris urges you to collect the necessary essence for such a ritual as soon as possible.