Blood and betrayal roared in Sokka's ears – he couldn't believe Aang, who was practically family, would lie like this.
"You can go to the North Pole on your own!" he growled, and took savage pleasure in watching Aang wilt.
The next day, as Aang left, their eyes met. This time, though, the pain there made Sokka wince.
When the wolf howled and Bato said it was separated from the pack, Sokka remembered his father's departure, years ago. Aang's devastated face flickered in his mind. And he knew they had to go back.
Aang was family. They couldn't leave him behind.