Disclaimer: Avatar the Last Airbender copyright Dante Dimartino, Brian Konietzko and Nickelodeon Studios.
"La and Tui are spirits, yet they reside in our world. They can do this because they were given mortal bodies, however, the price was they were required to relinquish most their spiritual powers. Koh desires the same but isn't willing to make the same sacrifice. For now, he squats in the minds of the broken and weak, playing us like a master puppeteer; but it's a body of his own he wants."
"So he took Zuko's."
"No. The Mother of Faces played a trick. Koh was very angry she kept Zuko from him. He can squat, but no more."
Author's Note: Double updates today and tomorrow to get back on track. Back to daily updates Monday through Friday next week.
