While attempting to summit the unconquered crest of Parascotopetl (a fictitious mountain in Ecuador), a mountaineer named Nu ez slips and falls down the far side of the mountain. At the end of his descent, down a snow-slope in the mountain's shadow, he finds a valley, cut off from the rest of the world on all sides by steep precipices. Unbeknownst to Nu ez, he has discovered the fabled "Country of the Blind". The valley had been a haven for settlers fleeing the tyranny of Spanish rulers, until an earthquake reshaped the surrounding mountains, cutting the valley off forever from future explorers. The isolated community prospered over the years, despite a disease that struck them early on, rendering all newborns blind. As the blindness slowly spreads over many generations, the people's remaining senses sharpened, and by the time the last sighted villager had died, the community had fully adapted to life without sight...