Sokka's heart lurched when he saw Katara carrying Aang.
Before he knew what had happened, he knew it was bad. He'd seen Aang unconscious before, and knew that he always recovered quickly. This time, he was limp, motionless, in Katara's arms. And as she approached, Sokka could hear her sobbing.
"He" – Her voice was raw and hitching, choked with tears. "There's – just one chance."
When the water sank into Aang's back, Sokka held his breath. And when the arrow flashed, tears burned in his eyes.
More than the Avatar – Sokka wept with relief that his friend, his brother, was alive.