When Emperor Charles starts working with Firelord Ozai, Zero has a lot of chaos to stop.

What if there was a secret Woodbender in Kyoshi Island, the last of his kind. What can he do to end a 100 Year War?

The Avatar and the water siblings find an island, where an even greater danger will be released.

The Others have been revealed and a company of gold maneuvers to reclaim the dragon's lost title. A warrior-king seeks lion's blood, while a drowned man seeks to implement the darkest of designs. Behind the Clash of Kings, a Fire Lord begins her ascent.

Re-published, no changes. Kakashi attempts a summoning from a training scroll in the hopes of strengthening his nature chakra. The hokage mistakenly summons a water bender who he must then help find a way home.

Having survived the terrible battle with Azula, Aang faces new challenges as he and his brave friends secretly enter the Fire Nation. Along the way they meet the brave souls of Atreus Jötunn/God and Aisling the fairy, Mimir the head, the dwarfs Brokk and Sindri and the infamous Ivar the Boneless while preparing for the Day of Black Sun.

As a tornado come to neverland bloing everythiing in its sight, it blows Jake, and Izzy to another universe where there is a 100 year war happeniing..as Katara and Sokka along wth the now unfrozen Avatar Aang, will they be able to stop the war from hapening, and will, things go as planned? Fing out in The Two Newcomers.

Katara and Aang spend their last year together. Major character death.

Amongst the species the Mandalorian knew to exist, a bender was not one of them. Regardless, his path crosses with Quinn, an inconvenient passenger who keeps her abilities close to her chest. Though he remains skeptical, he soon learns this bender's connection to the child-as well as her influence on the future of the galaxy-are significant pieces to defeating the Imperials.

Percy has been sent to the universe of Avatar at the request of Raava. His quest was to protect and assist the reincarnations of The Avatar at any cost.

Destiny is a powerful force that drives people to where they are now and who they ought to become. It is also unexpected that people can't understand what it's trying to convey. Some are lost, and some are aware. This irresistible force had led a certain kunoichi to a world where bending elements are prominent, believing that protecting the people here is her own destiny.

One-shot ATLA AU in MHA "...After that life-changing fieldtrip, BAM! Here you are!" "Toph... Please include that it was years before we had our son." "I can't see the problem, Zuko." "You can't see at all." Izuku knows his parents are imperfect. But they are the strongest people he knows. They're his hero. So maybe, despite his imperfection, he can be one too. (Platonic ZukoXToph)

After an 'incident' during his sixth year, Severus Snape is sent to another world and is forced into a war that isn't his own. While searching for a way back, Severus journeys down a path of 'self-discovery', forcing him to reflect on his life and question everything he's ever known - 2nd installment to my Severus Snape Series!

Naruto and Will are now in the Four Nations, ready to learn their elements and help the Avatar end the war. Recommend that you read "Meridian Jinchuriki" first

The road to redemption is rocky and long, a path Azula doesn't want to trod. There is no second chance for the former princess, why should there be. Her mind is crippled and broken and her soul doesn’t have the strength it used to. Only, by some miracle she is given a chance, a chance to start over. Maybe it is Agni in her never ending grace, or maybe it is something far worse.

Long after the age of Korra, the next Avatar has arrived. The only problem is, the Avatar is no longer needed. Without the need of the Avatar, the current one run away, only to find a world that may need someone to restore balance. May the Boiling Isles be prepared, because Avatar Luz is coming. Now has a TV Tropes Page.

After sacrificing her life for Zuko, Katara is sent to a new world where Heroes and Villains walk among the people. Upon gaining help from interesting individuals and going to the top Hero school in the country of Japan, Katara will live the life of being a Hero as well as waiting for when she can go home...but does she want to? [Cover by astrocitoart on Tumblr!]

Two dark princes hold their bright princesses close.

The first feeling Zuko had when reborn as the heir of a ninja clan during the bloodiest war in shinobi history - was vindication. He always knew he was the universe's favourite punching bag. AU Zuko-is-Itachi.

The Gaang has faced trials and challenges... but nothing like this. After some very bizZaRe folks come through a mysterious portal and bring a new, terrifying enemy, the Gaang is pushed to the brink of destruction. WILL FRIENDSHIP PREVAIL? WILL LOVE WIN OVER HATE? Almost definitely not! This grand epic is the tail of aangst, love, aanguish, betrayal, death and much, much more.

Long ago, the four nations lived together in harmony. Then, everything changed when the world fell out of balance. Only the Avatar, master of all four elements, could bring harmony, but when the world needed him most, he vanished.

After thousands of years without an Avatar, Midoriya Izuku is finally reborn as the Avatar in the age of quirks. But after being gone for so long he can't just resume his duties like nothing ever happened. It will be up to him to restore the Avatar status to what it used to be, all the while combatting threats, mastering the elements, and having no idea how to handle a conversation

If Katsuki is going to be the Avatar, he's going to be the best one the world has seen. Even if the Fire Lord decides he wants to use him for a war he's starting and even if everyone else in the world doesn't trust Katsuki. He's just going to have to be a little patient. Even if he doesn't want to.

As Naruto achieves the rank of Jonin, he is sent on a mission to Cranefish Town to form a squad, but the squad he wants to form already have their own plans of building a new super nation, escalating an entirely new mission altogether! AU where Naruto world and Avatar world coexist together.

One Shot. Spoilers for Legend of Korra. Aang ends up in the Young Justice universe due to Raava splitting up and her other half being lost in the creation of the portal. (I just like Aang more and I thought this would be somewhat neat. This is purely for people to make their own crossovers or fics from.)