For years, fans of Avatar: The Last Airbender and The Legend of Korra have burned with one question?what happened to Fire Lord Zuko's mother? Finding a clue at last, Zuko enlists the aid of Team Avatar?and the most unlikely ally of all?to help uncover the biggest secret of his life. * This is the perfect companion to The Legend of Korra! * The official continuation of Airbender from its creators!