The following account was recorded in the agent's log during your transmission: Blinding sunlight's spilling out of a jagged, crystal-filled crevasse in the ice shelf of what looks like Antarctica, casting this kaleidoscope of colors across the glittering, frozen walls... Like, the air's crisp and still, but I can smell this pungent scent of ozone and something almost, umm, chemical. The sunlight's illuminating this symbol etched into the ice, it looks like a sigil from Austin Osman Spare's book of automatism, but with these shifting, loop-like curves that seem to be responding to some weird resonance coming from the Earth's core, which I can see through the ice, about a hundred feet down, where the crust's somehow parted to reveal it like a hollow core.