The following account was recorded in the agent's log during your transmission: Uh, massive, crystalline stalactites are refracting sunlight that's pouring in through the open roof of this gargantuan, naturally occurring geode. The air's thick with a metallic smell and it's really dry in here, like... it's affecting my skin. The walls are covered in ancient, weathered frescoes that appear to be some kind of mixture of Gnostic scripture and NASA's Apollo Mission patches. Water from an underground river is flowing through the geode's floor, slowly dissolving a chunk of what looks like a lunar module, partially buried in the crystalline rock.