In one universe there's Hiccup and Kala as a couple, living together happily with their three children Dart, Stoick, and Lief. But what if I told you there was another universe where that wasn't the case? What if I told you there was a universe where Hiccup and Kala aren't mates, but rather father and daughter? And what if I told you Toothless was Kala's older brother?

Here's the next season.

Modern AU A new nightfury Hatchling is discovered. And it's Rider/adoptive mom is hoping that having an adult nightfury in the name of Toothless, will be beneficial to her new companion. Self-insert.

The Dragon Riders are setting sail once again in their brand-new ship, but to get to their next destination, they have to sail through a part of the ocean where ships have mysteriously disappeared.

The Berkians and Outcasts have defeated the Berserkers. With their chief taken as a prisoner of war, Hiccup is unsure if he can move on like the rest of his tribe and agree that any fate is befitting Dagur's crimes. Maybe there is hope for the deranged youth and the Berkian heir is the one who can help restore their broken treaty.

An ancient secret is about to be revealed, and after 1,300 years, new Dragon Riders are about to rise. However, they will face challenges just like their predecessors, and just like them, they will do whatever it takes to protect their dragons.

What if Hiccup had a discovered a secret hideaway where he hid Toothless and begins to put together some very special collections! Travel adventure story!

She was the weird foreign girl, he was the most useless Viking in the history of Berk. Together they were just Leandra and Hiccup. Two best friends who searched for their place in the world. Would their search for it unite or separate them?

While on their routine patrol to prevent the hunting of dragons, the dragon riders stumbled upon an unremarkable hunter. However, their interaction with this hunter reveals a different side to the hunters. The characters in the story belong to their respective owners and any OCs created for this story are not to be copied. (Set up after HTTYD 2 ending).

Hiccup and Toothless find themselves run out of Berk. They start a new life when they take over as the alphas of a large group of dragons.

L'archipel Barbaric est en guerre contre les Dragons depuis bientôt 400 ans, Une prophétie a été annoncée et que la guerre prendrait fin. Malheureusement, elle ne se réalisera pas immédiatement. Suivez les aventures d'Harold Horrib' Haddock Troisième du nom tout au long de sa vie sur Beurk ou dans l'archipel. Mise à jour le samedi.

In this AU set in modern times, a psychologist is hired to rehabilitate the inmates in the city of Berk's overflowing prison. When he begins providing therapy for the life-sentenced Dagur, questions arise regarding the details of his crimes and possible corruption in the prison itself.

Hiccup has no choice. After revealing he is friends with a Night Fury, he has to leave the village or Toothless would suffer. Astrid follows and the two try to start a new tribe living together with Dragons.

After the events of Triple Cross, Viggo survives his final battle with Johann's forces and starts a new life with the skrill serving as an accomplice to the King of Dragons.

Like many other stories, Hiccup runs away from Berk to protect his deepest secret. However, he finds himself on an island where dragons are treated as friends instead of foes. With new friends, an oddly familiar boy from a distant land, and a girl that's similarly an outcast, Hiccup might've just found his place. (HiccupXHeather) (OCxOC)

Welcome to the redo of my old story. This story takes place during HTTYD1, except a few things have been changed, eg: Hiccup is friends with Snotlout, and he doesn't shoot Toothless down.

La vida de un vikingo no es sencilla en el archipiélago barbarico, en especial cuando se tiene un importante destino sobre tus hombros. Por suerte para Hiccup, él cuenta con la ayuda de su inseparable hermana gemela para convertirse en un héroe. Mi versión de HTTYD de Dreamworks con detalles de los libros y más. Contiene: OCs, lenguaje vulgar, violencia y situaciones censurables.

Hiccup never thought after Grimmel's death he'd have to keep an eye on events beyond his own island anymore. A previously unknown tribe comes to change that for him when they make a nationalist their Chieftan who desires to bring back the viking lifestyle of seven generations, expansion via aggression, and a ruthless goal to eradicate what he calls the 'unvikings'.

How To Train Your Dragon AU: What if Valka and Hiccup had both been taken the night of the raid? This is my take on what could've been.

Alternate Universe to the Nine Realms, where the line between dragons and humans isn't as hard to cross as you think. After all, the dragons will return.

When a strange boat is found on the edge of the Edge's waters, the Dragon Riders never expected to find what they did. How do they cope? Rated light T for mention of slavery and fight scenes. (Also Hiccup is a beast when he's mad and we stan that)

Hiccup leaves after finding the Red Death much to Astrid's dismay. He leaves behind the knowledge of how to train a dragon and the hope that Astrid will follow in his footsteps. Soon Astrid promises to follow him to the ends of the earth. Everything is fine until Hiccup stumbles upon the village of Kattegat and makes an enemy out of their king… (A Hiccup Runaway AU) M for Violence.

Things at Berk have not been easy since Hiccup was kidnapped and new threats are coming, it's up to Hiccup and his friends to protect Berk from any danger, it doesn't matter if the danger comes from humans or dragons (Sequel to A new Boy in Berk: Riders of Berk)

The sequel book; While Hiccup’s life was supposed to make a turn, it seemed it went in the opposite direction. Village she thought about as home turn its back on her, and she did same. Unfortunately, decision leads her into only more danger, the people, whose intentions were as dark as their banderas. Well, at least she wasn't alone, right? Shapeshifting female!Hiccup x Toothless.