Avatar: The Last Airbender is indeed an original story. It has its own distinct style and narrative that sets it apart. The combination of elements like bending powers, diverse characters, and complex story arcs make it a one-of-a-kind creation.
Definitely not real. It's a fantasy world crafted with unique characters and magical elements that exist only in the realm of imagination and storytelling.
The main themes in this novel include self - discovery. Kyoshi has to discover her true self and her place in the world. Legacy is also a theme. Since she is an Avatar, she has to think about the legacy she will leave behind. Additionally, there is the theme of facing challenges. Kyoshi faces numerous challenges, both physical and emotional, and how she overcomes them is a big part of the story.