The following account was recorded in the agent's log during your transmission: A vast, crystal-encrusted tunnel stretches out before me, its facets reflecting the eerie blue light of luminescent fungi clustering on the walls. Like, the air's super still, and it's got this heavy, damp scent, but it's not musty - more like the smell of wet stone after a storm. Water trickles freely along the tunnel's surface, somehow flowing upwards against gravity to collect in a series of intricate, carved basins that seem to be emitting this low hum, like a generator or something. A sigil etched into the crystal surface appears to be drawing the surrounding rock into itself, creating a small void that's just... eating the tunnel's wall, bit by bit.