Water. Earth. Fire. Air. Only the Avatar can master all four elements, and stop the ruthless Fire Nation from conquering the world. But when the world needed him most, he disappeared. And he's been gone for a hundred years, until now... A young Waterbender named Katara and her brother Sokka rescue a strange twelve-year-old boy named Aang, who's been trapped inside an iceberg at the South Pole. Not only is Aang an Airbender - a race of people no one has been in a century - he's also the long-lost Avatar! Now Katara and Sokka must help Aang master all four elements so he can face his destiny, and save the world! The first twenty-six stories in Book 1 & 2 take place during the Avatar: The Last Airbender animated series, and show you what Aang and the gang were up to between your favorite episodes. The last two stories are special bonus adventures that take place further off the beated path...