Eight assassins hired to murder Darth Vader - eight assassins dead. Now the man who enlisted them has hired a ninth assassin, this one more deadly than all the others combined. At the same time, a different threat to the Galactic Empire has made itself known. Darth Vader will follow the threat to its source and encounter an ancient, evil people, with a dark prophecy and a powerful weapon. All the while, the ninth assassin lurks, waiting for the perfect moment to strike!

Avatar Aang travels to the spirit world to parley with an ancient power, bringing Fire Lord Zuko ever closer to discovering the truth about his mother's fate - and his own past. Yet Zuko's sister, Azula, is becoming increasingly dangerous, threatening to ruin everything that Zuko, Aang, Katara, and Sokka have struggled to achieve on their search! Written and drawn by the creative team behind the best-selling Avatar: The Promise, Gene Luen Yang and Gurihiru, in collaboration with Avatar: The Last Airbender and Legend of Korra creators Michael Dante DiMartino and Bryan Konietzko, this is the ultimate continuation of Avatar and the perfect companion to Legend of Korra!