14She was always there » Katara & Aang have know each other since they were kids. Your usual childhood best friends. But 1 summer night, after a horrid incident Aang finds out he is the Avatar. Realizing there is nothing holding him back,he goes off to become the legendary Avatar . Years later when Aang returns home, him & Katara meet again,& the domino effect begins. Memories aren't always pleasant AU.