I taught Leah how to tell where we were in the Campo by using her sense of smell. The south side was glazed with the smell of slain fish and no amount of water or broom-work could ever eliminate the tincture of ammonia scenting that part of the piazza. The fish had written their names in those stones. But so had the young lambs and the coffee beans and torn arugula and the glistening tiers of citrus and the bread baking that produced a golden brown perfume from the great ovens. I whispered to Leah that a sense of smell was better than a yearbook for imprinting the delicate graffiti of time in the memory.