Boilingrock Stories

What if? ....of the things that could change, this is would have the biggest impact. An AU of Katara and kya switching fates, but kya died didn't she? but who would kill a child? Yon Rah wouldn't. Years later, Katara joins up with her brother and the gaang, to end this war....hopefully Zutara? Maybe this is more of a Katara-centric.