The following account was recorded in the agent's log during your transmission: Umm, sunlight's reflecting off the surface of a massive, frozen lake, but it's not quite frozen – the ice is like, rippling and distending as if something's pushing up against it from beneath. The air's crisp, with a bit of a biting chill, and there's this faint hum, almost like a resonant vibration that I can feel through my entire body. Just ahead, a small section of ice has...unzipped itself, opening a narrow crevice that drops straight down into darkness; a delicate silver light spills up from within, but there's no warmth coming off of it, which feels weird.