The following account was recorded in the agent's log during your transmission: Massive, rough-hewn boulders covered in ancient Norse runes fill the vast, humid cave system, casting deep shadows that twist and writhe across the damp walls as the air seems to vibrate with some kind of inaudible energy. Umm, water's trickling silently from the runes themselves, pooling into a network of crystalline channels that reflect the flicker-free, ethereal light cast by... a sun that's somehow embedded in the cave's stone ceiling, shining downwards despite being completely enclosed in solid rock. Like, the air smells of damp earth and ozone-free static, and it's dead still except for a super faint humming coming from deeper within the cave.