The H.E.L.M., The Moon's Orbit
After completing the investigation on the Moon, the Guardian returns to the H.E.L.M. to debrief with Eris.
Eris Morn: Calus knew exactly what he was doing. Goading his daughter into striking out on her own, manipulating her. But there is a silver lining to this cloud. The information you retrieved on the Moon has proven to be the final piece of Calus's puzzle. It is no mere curiosity that drew him to the lunar Pyramid. He is a consciousness that spreads out like a vascular system… And he is attempting to become one with the Pyramid, so that he may control it… so that he may wield its power. Worse… it appears as though Calus is not doing so of his own volition. He is doing it at the behest of another, our true enemy. The Voice in the Darkness. The Witness. You must return to the Leviathan, Guardian. Continue your work there while I prepare a ritual to add the empress to our bond.