The following account was recorded in the agent's log during your transmission: Grey stalactites stretch down like they're melting from the ceiling of a vast, underground cathedral. The air's cool and still, smelling of damp earth and wet stone, with a faint undertone of camphor - it's quiet, except for this steady, high-pitched whine that's somehow making the tiny hairs on my arms vibrate. Umm, the sound seems to be coming from this...this perfect, crystalline model of a Meru Yantra suspended above the center of the room, slowly rotating in mid-air despite having no visible axis or support. Faint, flickerless sunlight seeps through the walls somehow.