Team Avatar is in peril as a dangerously powerful ancient spirit awakens with vengeance and destruction on its mind. Bonds will be tested and new truths revealed as Aang must answer an important question: Can humans and spirits co-exist?!Written and drawn by the team behind the best-selling The Promise and The Search, Gene Luen Yang and Gurihiru, in collaboration with Avatar: The Last Airbender and Legend of Korra animated televison show creators Michael Dante DiMartino and Bryan Konietzko, this is the ultimate continuation of Avatar and the perfect companion to Legend of Korra!