Mavis Gallant has written dozens of dazzling, sardonic, heart-breaking short stories. She is acknowledged as a master of the short-story and has been showered with honours. Yet she is not well known in her home country - Canada. Now in her 91st year, she still lives in the same small Parisian apartment she moved into almost 50 years ago. Rome-based writer and journalist Megan Williams spent almost a week with Gallant in Paris, recording material for her documentary portrait: "The Four Seasons of Mavis Gallant."