"I should really just assume that everyone I meet is already a friend of Kaya's," Nima says, with good humor. "We do have different kinds of benders. The four elements are water, earth, fire, and air. One person can bend all the elements, but only one - he is the Avatar, reincarnated through the elements over many lifetimes. Right now, he is an air nomad, like me, a brother called Aang. He is a good friend."

Aang's unlikely survival, and the sorrow of his living without their people, never fails to touch Nima's heart. She smiles fondly, thinking of the Avatar.

"When you say pigs, I think of sheep-pigs, piggopotomi, moo-sows. I guess you don't have those where you're from?"