“Different moves make different sounds – the steady tread of someone walking, the scrape of shifting feet, the patter of someone in a hurry – and with practice you can learn to filter them, picking out the ones that don’t fit in. It’s nothing to do with magic, just simple awareness, a primal skill that anyone can learn but which most people in the modern age have forgotten. But anyone who lives as a predator or a prey learns it fast.”
