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After the demise of the rest the fireteam, Brya and Eris were confronted by a choir of Hive singing the Deathsong and chanting the names of the Hive Worm Gods. Brya encouraged Eris to ignoring the chanting and run in the memory of their dead comrades, repeating their names to counter the power of the Hive ritual and bolster Eris' resolve. Although they escaped the Deathsong, they remained trapped in the Hive warrens below the surface of Luna with the Hive hunting them through their Light. Brya decided to draw the Hive away with her Light despite Eris' protests and made her promise not to look back. Her sacrifice worked, as Eris was able to survive the mission and return to the Last City, although she was radically changed by the experience and Lightless due to Brya's demise.
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