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. Written and drawn by the creative team behind the bestselling Avatar: The Promise, Gene Luen Yang and Gurihiru, in collaboration with Avatar and Korra creators Michael Dante DiMartino and Bryan Konietzko, this is the perfect companion to The Legend of Korra!