Sanctuary, The Moon

The Guardian approaches Eris Morn after defeating Hashladûn, Daughter of Crota.

Eris Morn: The Pryramid trembles under the weight of our progress. With every victory, we draw closer to conquering it. The spoils of Hashladûn's death are twofold. We now know what the Hidden Swarm have been using to shield themselves from the Nightmares - and where it lies. The Cryptoglyph. If ever there was a more powerful set of runes the Hive use to conjure the magics, I have yet to learn of it… Of course, to acquire it, we must delve into horrific depths. Our Cryptoglyph lies… at the bottom of the Hellmouth.