Water... Earth... Fire... Air... Long ago, the four nations lived together, in harmony. Then, everything changed when the Fire Nation attacked. Only the Avatar, master of all four elements, could stop them. But when the world needed him most, he vanished. A hundred years passed, and my brother and I discovered the new Avatar, an air bender named Aang, and although his air bending skills are great, he has a lot to learn before he is ready to save anyone. But I believe that Aang can save the world.