ZUKO:

Promise that you’ll end my life should I become like dad;
Promise Du will take me down if I become so bad.
Cancer has run in families since before my incarnation;
An Avatar must vow to curtail malignant transformation!

For the crimes of my ancestors, I would gladly atone:
The sins of my forefathers should burden me alone
But it all seems too much for a teenaged firelord to bear,
Though involving anyone else would truly seem unfair;
Of others who can help, I’m really not aware,
Yet it pains me, my friend, to have this to share!

But if I ask too much, I would gladly take my own
Life—erase my...