There Is Only Fire: A Reylo Fanfic

"Water, Earth, Fire, Air. Long ago, the four elements lived together in harmony. The Avatar, master of all four elements, controlled the balance by connecting with the World of Spirits, Shadows, Ancient Dragons, and minds of those that resided in the world. They must maintain a balance between the realms of darkness and light, or the world will be lost to chaos...."

"This book is full of bullshit. There is no Avatar. There is no balance."
Rey knew this new Admiral was wasting his time looking for foreign element benders. There was only fire. Only darkness and starvation. There was only fear. That's all she grew up with, and that's all there ever was in Ba Sing Se.
But now, there is an awakening.

Also read this on archiveofourown.org under I_am_a_tumbleweed. (We're the same person who doesn't own any of this.)