The following account was recorded in the agent's log during your transmission: Massive, crystalline stalactites hang from the ceiling of an enormous cave, their facets reflecting the pale blue light of luminescent mushrooms that cover the ground. The air is damp and has a heavy, loamy smell, with a stillness that's broken only by the gentle trickle of water somewhere in the distance. A section of the cave wall appears to be... breathing, slowly expanding and contracting like a diaphragm, and umm, it's somehow filtering the light from the mushrooms to create this weird, pulsing effect. The humidity's really high, making my skin feel clammy.