She is sitting on a bus crossing the wintry Algerian desert, seated tight up against her slumbering merchant husband and surrounded by Arabs tucked deep into their burnooses to ward off the cold and the fine grains of sand that find their way through cracks in the vehicle. Suddenly, she notices a French soldier across the aisle who gives her a glance, carrying just a tinge of suggestion. That glance and a couple of other feeling states to follow are about as far as the “adultery” in this story’s title ever goes, but it sets in motion a long and…