INSTALLATION ARCHIVE 117649/06: Their greatest fear.
117649 Despondent Pyre: I am close to deciphering the runes. Perhaps I will learn who left them. My makers... the Forerunner's great fear was understood be the Great Parasite. The Flood. A scourge that almost wiped out everything. I now believe this hypothesis to be incorrect. Their greatest fear is... was... losing their power. The fear of a master who would become a slave.