Only days late! I am the best at deadlines. I really, really didn't care for this prompt because I don't like AUs. If it can be set in the story's universe that's one thing, but I get completely derailed if I try to write a modern day version or a high school AU or something. Instead I tried to capture a 1920s feeling in the show's normal setting using the elements that changed between ATLA and LOK.
Most of the city had hidden smiles behind their hands when they saw their new Avatar for the first time. Really, those clothes! They could help laughing at the idea that the most important person in the world dressed like something out of the last century. Oh, certainly people wore that kind of thing out in the backwoods, but not here. Poor thing! She had those boots that were clearly made for snow and that provincial hairstyle. She must never have gotten to experience real civilization.
Amon had smiled too, at first. The girl was clearly sheltered and inexperienced. He'd been prepared to handle someone far more prepared to deal with a threat, but this would be a laughing matter. The people had whispered more when she refused to change her ways after months in Republic City, but Amon began to grudgingly admire. She might be foolish, but she wasn't unintelligent. She knew that her clothes were different, her hair was tribal. Tenzin was one of the richer men in the city, and surely he would have offered to buy her new clothing.
It became a new game, to watch how she would shock the city's population next. When the city laughed at how she didn't understand the press, he laughed at how forthright she was. She'd still never be a real threat to him, but she was something he could respect now, not just a momentary distraction to be swept aside and forgotten. Every morning he picked up the newspaper and every night he turned on the radio, searching for some new story about her. It was strange to think that he knew so much about her when she barely knew anything about him, but that would change. She'd know him very well soon enough.