The following account was recorded in the agent's log during your transmission: Umm, massive, crystalline stalactites hang from a cave ceiling like a thousand feet above me, illuminated by some kinda faint, ethereal light filtering down from above. The air's dry and still, with this weird, metallic tang, and I can hear the faint hum of... something. A perfectly intact, 1990s-era Eurostar train somehow rests on the cave floor, half-buried in ancient, calcified deposits, its sleek, silver hull reflecting the pale light. It's got a faded, vinyl "Gochujang Express" logo slapped on the side, for some reason.