On Christmas Eve 1909, Mark Twain's youngest daughter, Jean, died. She was just 29 years old. Over the next two days, in his grief, he wrote of his deep love for her; her last days with him; the previous loss of his wife, another daughter, and longtime friends; and his profound loneliness as he reached what would be his own final days. He wanted this to be the final chapter of his autobiography. Four months later he, too, was dead.