Following the battle in the South Pole, Avatar Aang and Katara are forced to cross into the Spirit World in order to track down the Avatar's greatest adversary yet, and the world's biggest threat. In the Mortal World, the Firelord and his companions are fighting a war of their own, an unlikely ally by their side as fire, water, and spirits clash. Can either world survive? KATAANG.
Rated: M - English - Romance - Chapters: 36 - Words: 225,439 - Reviews: 154 - Favs: 94 - Follows: 92 - Updated: 10/18/2019 - Published: 8/6/2018 - [Aang, Katara] Zuko, Toph