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. The avatar kept balance in the world but with him gone the world became unbalanced, that is until it gave life to a new avatar but instead of continuing the cycle it went back. Only a select few know this as they are apart of a special group not tied to one nation, they are the White Lotus.
16 parts