You’re living in a small village about 750 miles away from Ba Sing Se. When a girl comes running into your village, no one could talk to her as she wouldn’t stop running, but nothing was chasing her? She finally ran into your house and just collapsed, she just couldn’t run anymore. She kept repeating

“Welcome to Ba sing se.” “We are safe here.” “There is no war.”

Like she was brain washed, luckily you know a water bender who knows healing. The bender healed her and it seemed the brainwashing was wore off.