The Rising Sun

Azula's hand swept far above the basin, yet the water flew from the bowl, spilling onto the ground, shining in the silver moonlight. Time stood still for a moment, and Iroh's heart skipped a beat. "I need a teacher." His niece whispered so quietly, Iroh almost didn't hear her, "I-" Her voice broke. "I can't control it anymore. I'm always looking over my shoulder, afraid, but the Avatar spirit won't let me hide. So, here I am. Help me, Uncle."
"You are the Avatar." The words left his mouth as though the air had been punched from his gut. Azula winced, looking away. Iroh's world turned upside down. This would mean the Earth Avatar had died in Ba-Sing-Se long before his siege at the wall. Lu Ten's death was for naught. Iroh clenched his jaw. No, losing Lu Ten led him to a girl who needed his guidance.
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An AU where Aang drowned at sea. Two cycles later, desperate, the Avatar Spirit chose a girl who was born a prodigy. A princess trained in the art of war, burdening her with the spirit of balance. A unwilling child thrust into a war that she must end. After avoiding her responsibility as Avatar, she is forced out into the world to face her destiny and right the wrongs of her nation. An Avatar Azula Story.