There's a few stories I've read on this fandom that might interest you. The first one is an AU called Enslaved. It's an interesting look at the Water Tribe culture though it's a Katara/Zuko romance fic but with none of the mushiness we usually get with this pairing. Zuko struggles when he's suddenly thrown from his life and taken as a slave for the Water Tribe.
A triumphant war party returns with an exotic slave, a gift for the ruling house. Katara and Zuko AU
http://www.fanfiction.net/s/5306755/1/Enslaved
This second one I rec mostly for the world building. This person knows her/his stuff. Has done research on different cultures and war and uses that in her story. It's not nice to anyone and gives an interesting look at how different these cultures are and how one concept could mean different things to different people, something we don't see in canon and how these cultures deal with each other and see each other. It gives an interesting reason for the war, the massacre of the Air Nomads and another reason as to why Zuko was so determined to find the Avatar other than his exile. It's really good though you might not like so much how Katara is portrayed.
Because anybody who could break into the North Pole has to have thought theft through better than that... AU bit of "The Cave of Two Lovers".
Dragon's fire is not so easily extinguished; when Zuko rediscovers a lost firebending technique, shifting flames can shift the world... Follows "Theft Absolute".
http://www.fanfiction.net/s/5398503/1/Embers
Hope you like. It's really long and still a WIP but the author does update every three weeks. Let me know if you like them.
no subject
A triumphant war party returns with an exotic slave, a gift for the ruling house. Katara and Zuko AU
http://www.fanfiction.net/s/5306755/1/Enslaved
This second one I rec mostly for the world building. This person knows her/his stuff. Has done research on different cultures and war and uses that in her story. It's not nice to anyone and gives an interesting look at how different these cultures are and how one concept could mean different things to different people, something we don't see in canon and how these cultures deal with each other and see each other. It gives an interesting reason for the war, the massacre of the Air Nomads and another reason as to why Zuko was so determined to find the Avatar other than his exile. It's really good though you might not like so much how Katara is portrayed.
Because anybody who could break into the North Pole has to have thought theft through better than that... AU bit of "The Cave of Two Lovers".
http://www.fanfiction.net/s/5115106/1/Theft_Absolute
this is the prequel
Dragon's fire is not so easily extinguished; when Zuko rediscovers a lost firebending technique, shifting flames can shift the world... Follows "Theft Absolute".
http://www.fanfiction.net/s/5398503/1/Embers
Hope you like. It's really long and still a WIP but the author does update every three weeks. Let me know if you like them.