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!

* Avatar: The Last Airbender - The Promise soared to the top of sales charts!