A very long time ago a girl with the power of the elements was treated horrible and hated by many during a war. She had friends that stayed with and helped her. That is until she was betrayed by her once friends selling her off to die. She barely escaped alive, she is filled with hate and sadness doing evil causing chaos and destruction while trying to end the war which the Avatar did. The people fought her with the help of the Avatar at the time keeping her from escaping till they trapped her in the Spirit World. She was alone till she felt the new at that time Avatar barely she wouldn't have noticed if she wasn't meditating at the time. She eventually found him the Avatar fighting the Fire Nation. This is where Y/n L/n the Dark Avatar's or The Mistake Avatar's story begins and changes for the better maybe. Everything goes to rightful owners!