Four
Prolouge
You know how some folks say that that's impossible? Or that won't ever happen. Or it can't be done? Few people could prove them wrong. The story of these kids proved many people wrong when they said no one could save the world as we know it. They weren't important, few people knew they existed. But there were four of them living in what you would call a modern Four Nations world where the people forgot how to bend the elements.
They're names were Ritho, Kana, Hazon, and Zaili. They were each from different nations and never knew the other existed until they crossed paths. This story is about them. It also begins at the end. The end of the Avatar reincarnation.
Avatar Zoksi of the fire nation was the fourth Avatar after Avatar Aang. The few Fire Nation citizens still resented anything that had to do with the Avatar. One day, he was out making peace in a Fire Nation city full of many people who hated him. He was teaching youth ages five through seventeen how wonderful and safe a world would be without violence and worldwide domination. Unfortunately, many of the children's parents would be better off rotting in prison than watching the Avatar teach their children. So they ganged up with many other peace hating fire benders and attacked him during one of his lessons. The children screamed. Zoksi calmly asked them to stop, but they wouldn't. As he could control his Avatar state, he started fire bending back at them it saying to immediately stop. Then one man crept behind him and created lightning that went through his heart. To the horrified faces of the youth, he fell and died. To what extent the adults were punished is not known or recorded. After all, this is the story of these four children.
Years turned into decades. Decades into scores. Eventually, centuries went by until you could go there and think that it was your world. Being there so much technology, they supposedly didn't need the elements.