The following account was recorded in the agent's log during your transmission: A miniature replica of the Golden Gate Bridge stretches across a vast, underground cavern, supporting a collection of giant, interconnected fungi that pulse with a soft, blue light. The air's damp and heavy, with a rich, earthy scent, and the sound of dripping water echoes through the space. Umm, above, a massive chunk of ice just kinda... sticks to the ceiling, melting slowly into the darkness. It's really quiet, except for this low, steady rumble that's causing the bridge to vibrate ever so slightly, and it's mid-afternoon, judging by the faint sunlight that filters in through cracks in the cavern walls.