Nerita, the Brigade General of the Beluslan Fortress, ordered you to report to Bestla. She said that the Artefact of Time and Space, which kept the collapsing Fortress frozen in time, was malfunctioning. You went to ask advice from Cavalorn in Pandaemonium, and he sent you to Haug, a Daeva of Time and Space, who told you that the Artefact was malfunctioning because of the declining Aether in Atreia. He gave you an artefact that'd fix the problem, and you installed it.