Literature
Promises
"Promises were meant to be kept!!" she screamed at him, tears running down her face, her element providing no source of comfort.
Zuko stood, immobile, unable to make a sound or allow an emotion to escape him.
"You were supposed to protect him! You promised me!! Promises were meant to be kept!" Katara raged, breaking free of her brother's embrace and leaping at the Fire Nation Prince.
She banged her fists against his chest, each thud against his sternum an echo of his heartbeat. Slow, thudding, and almost painful. Each blow a reminder, each cacophony of sound, an image. His Father. Boom. Aang. Boom. Lightening. Boom. Aang on the Palace Floo