“Watch your footing. The ice is tricky here.” I brace myself, planting each step with care, letting the studs on my boots bite into the frozen surface with a satisfying crunch. Rounding the snowcat, I spot Moose’s bulky form kneeling on an insulated mat as he inspects the treads. His down parka gives him the magnitude and presence of the animal he’s nicknamed for. He squints up at me from behind his balaclava, cheeks flus...

I check the weather console. A crust of frozen pixels still smears across the lower half of the second digit where Moose smacked it earlier, but it seems to read -28°C outside. It should be dark by now, yet the snow clouds have swallowed the night and turned it into a pale fog of blue and grey. When I return my gaze, Viv is watching me with a bemused smile. “You know whiteouts can generate infrasound?” she says, clearly r...