Reading the previous installments are not needed to understand this story. Simply read the italics, which will give you a quick look at what the world of this fanfiction looks like. and you'll be good to go. Unless you're old readers, then you can skip the italics.

Also, this story will lean towards the HTTYD book series, since I noticed it's sometimes ignored in this fandom. This is the third and final part of the series. I have no continuation of any kind planned.

Disclaimer: I do not own any of the four franchises(How to Train Your Dragon, Rise of the Guardians, Brave and Tangled) included. All of them go to their respective original creators(who are awesome).

Previously:

Man in Moon had tasked Jack Frost with forming the Defenders of Realms, a group of warriors from each of the Four Worlds to fight against Pitch Black and other dark forces. Jack is given the Core Compass, a device that will allow him to cross the Worlds. Early on in his journey, Jack recruits Hiccup Horrendous Haddock the Third, the descendant of North's(Santa) old companion-Grimbeard the Ghastly-from Berk and his dragon, Toothless. But as they leave, Hiccup's arch nemesis, Alvin the Treacherous declares war on Berk and successfully conquers it in Hiccup's absence with the help of Pitch.

After saving Merida, Hiccup is given Grimbeard's sword christened Endeavour and learns that he is a candidate, along with Alvin, to become King of the Wilderwest, ruler of the islands from his home world. He takes Grimbeard's Memoirs and the sword. Soon, Rapunzel from the Kingdom of Corona in the Fourth World also joins our heroes.

Shortly after, the team is attacked by Pitch who easily defeats them, severely wounds Hiccup and captures Toothless. The dragon is left in Gothel's care as Hiccup wakes up and he and his friends resolve to become stronger, each of them take up their own training regimes. Hiccup learns swordfighting while Rapunzel learns to use a whip.

Three months later, the Defenders finish up their training and head to DunBroch to search for Toothless. However, Jack and Merida encounter Gothel and while they drive her away, the Core Compass is broken. After it is fixed by the Witch, the Compass gains a mind of it's own, and after Hiccup and Toothless have been reunited, transports our heroes to Jack's world while Gothel is killed by Pitch.

Upon arriving in his world, Jack learns that Jamie is in trouble, and he and his friends manage a successful rescue mission. Meanwhile, back on Berk, Astrid and the other viking teenagers, upon hearing news of the outcome of the battle of the Defenders, realizes that Hiccup is planning to return soon, and start planning their counterstrike against Alvin.

Chapter One: Return to Berk

Santa's workshop was bustling with life. Elves ran around the place eating cookies and playing around with flashy Christmas lights. The Yetis muttered to themselves as they were about working on the toys for the children of the world.

Jack Frost nimbly slipped in between the busy workers, careful not to known over any red and blue toys that the Yetis have worked so hard painting.

"Excuse me," Jack would murmur occasionally. "Pardon me. Whoops. If you don't mind, I need to go through." The Winter Spirit made his way to one of the rooms on the lower floors of the workshop. The smell of fire and soot started to fill the air. Heat radiated from the room. Jack peered his head in.

Inside, the second-in-command of the Defenders of Realms had an apron tied onto him. There was the sharp sound of metal as the boy inside held it against a spinning wheel. Small sparks flew from the friction, some of them threatening to fall onto his feet.

"Still working, Hiccup?" Jack asked playfully.

Hiccup stopped sharpening and looked up from his sword. "Oh hey, Jack," he said, moving the blade away from the wheel. "Sorry, I'm kind of absorbed in the preparations. Just wanted to keep good old Endeavour sharp and ready to go."

Jack gave Hiccup a smirk. "You're anxious aren't you?"

"What, no!" Hiccup blurted in reply. "Anxious? I'm not anxious, why would I be anxious?"

Jack raised an eyebrow as he leaned on his staff. Hiccup sighed as he took off his apron and dumped it on a nearby table. "It's been over three months since I've been home, Jack. It's just that I have a bad feeling about this."

"You think it's Alvin?"

"Pitch too, probably. I just know that something happened while I was gone." Hiccup picked up a leather scabbard sitting beside the wheel and sheathed his sword. "But that's why we're going back." As he spoke, Hiccup attached the scabbard to his belt.

"You forgot 'facing your destiny'," Jack added. "You're the one who's going to have to fight Alvin, grind him into dragon nip or whatever you feed your dragons, and become King of the Wilderwest."

"Yeah, well," Hiccup began, his sarcastic tone returning as he walked towards the exit of the forge, "I don't exactly want to agree with destiny."

"Then what are you going to do?" Jack wondered as he followed Hiccup out of the forge.

"I don't know. I'll figure it out later."

They two boys stopped talking as they made their way to the elevator. Jack tapped the tip of his staff onto one of the switches on the panel. The device clicked before pulling the two of them upwards to the high platforms.

"What about you?" Hiccup suddenly asked. "Aren't you worried about having to face Pitch?"

"I have to face Pitch alright," said Jack, "but no one ever said I had to face him alone. Neither did the prophecy of you becoming King of the Wilderwest."

"A fight for a title like that is one-on-one," Hiccup murmured, dropping his shoulders. "I don't think you guys are allowed to interfere."

The two of them paused.

"We should stop thinking about the future," Jack suggested.

"Yes, yes we should."

The elevator stopped at one of the highest floors. It's doors opened up. Hiccup and Jack found themselves on a large balcony overlooking the workshop. On the floor was a pentagon, each of the corners a tribute to one of the Guardians with a symbol of the moon in the center of it all.

Standing beside the railing were the other four Guardians: North with his swords, the Tooth Fairy with Baby Tooth beside her, the Sandman and the Easter Bunny. In front of them were two girls, one dressed in dark green and the other bright purple.

"Took you guys long enough," grinned Merida.

"It's about time we dragged Hiccup out of the forge," said Rapunzel, a smile adoring her face. Hiccup waved as he was about to greet his teammates when he was sent flying to the floor, a tongue licking over his face. Laughing, Hiccup got up and patted his dragon on the head.

"Alright, Toothless," said Hiccup. "I know you're excited. We're finally going back home."

"Are you sure we don't have to come with them?" Bunny asked, turning to North. "I'm not a hundred percent sure we can leave Pitch to these guys."

"I'm sure we can trust them," said Tooth. "Have you seen how many Nightmares they took care of last time? We couldn't even take on that many."

Sandy nodded in response. North laughed boisterously. "They will be fine, Bunny. Just leave it to Jack."

"I'd rather trust the skinny one."

"Hiccup?"

"Yeah, him."

"No need to worry about us," said Jack. "I've got the strongest team of warriors from the Four Worlds with me." He reached into his pocket and brought the Core Compass, a golden device that allowed them to cross between the Four Worlds. The Compass had been acting strangely ever since it was fixed by the Witch in DunBroch, as if it had a mind of it's own. It chose the destination of the Defenders, as if it was Fate's guidance herself.

A warm glow wrapped itself around the Defenders. Toothless stood next to his rider, his tail fully operational and all saddled up. Rapunzel had her whip on her belt. Merida had her quiver over her back, and the bow over her shoulder. Jack took one last look at North and the Guardians.

"We'll defeat Pitch for you," he said. "I'll prove to Man in Moon that he didn't make a mistake in choosing me as the leader of the Defenders of Realms."

North smiled sincerely. "You didn't have to prove anything to Manny. He already knows you are worthy. All of you."

There was a gentle flash, and the teenagers along with Toothless disappeared from the workshop. Bunny sighed. "It's going to be quiet around here without them around."

North chuckled. "It was lively with the four of them here. I'm impressed how strong they have all become. Grimbeard's heir in particular."

"You seem to be rather interested in Hiccup," said Tooth.

"You're right, I am. I wonder if he's as good as his great-great-great-grandfather in battle."

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"Stop them!" roared one of the Outcast warriors. His fingers pointed to a group of teenagers dressed in cloaks running away from Berk's Great Hall towards the woods in the distance.

Snotlout ripped off his hood. "These things are annoying," he panted as they ran. "Why do we need to wear them anyway?"

Astrid pulled her's back. "Gobber thinks it's better if we kept our faces hidden."

"I think the Outcasts would remember us with or without a disguise," Fishlegs muttered as he peered over his shoulder. Outcast men were chasing them with spears in hand. From the sides, a herd of onyx horses started to join them.

"Oh man, how many people are we going to have chasing us?" asked Tuffnut.

"Yeah, just because we stole a chunk of their food shouldn't make them that mad," Ruffnut added. In her hands was a bag filled with loaves of bread. Her brother held fish. Fishlegs had meat. Weapons and supplies were shared between Astrid and Snotlout.

"Why do we need all of this again?" said Snotlout.

"Because Hiccup's coming back soon," Astrid replied. "Alvin and Pitch are already planning for it. I heard them say so."

"So you were eavesdropping on them again? You should've taken me with you!"

"I didn't want to attract extra attention." Astrid's arms carried two axes and a few swords. Their grips banged against her skin. "We have to focus on getting this back to the Cove. Come on! The forest is just up ahead."

"Did we lose the Outcasts yet?" Fishlegs wheezed as he started to trail behind.

There was a clap of thunder. It almost seemed like lightning struck the ground just behind the viking teenagers as a flare of light appeared. The others didn't pay much attention to it, and darted off into the forest. Astrid made the decision of looking over her shoulder.

She saw five figures, and her eyes immediately settled on a boy in a green shirt, a brown leather waistcoat and auburn hair. Astrid knew who it was. Her legs ran faster than before, straight towards the Cove. She had to give the news to everyone else. Gothi, Gobber, and the chief in particular.

It only took a few seconds for the figures to adjust to their surroundings.

"So this is Berk," said Merida. "It's a lot more spacious than how I imagined it."

"Hiccup never said it was a kingdom," Rapunzel murmured.

"This looks exactly the same as it was three months ago," said Jack, his voice light. But as soon as he saw Hiccup's eyes, he knew that he was wrong. Jack followed Hiccup's gaze as they lead him to the Haddock Household, Hiccup's home. Atop it was a flag that did not bear the Berk crest.

"The Outcasts?" Jack whispered.

Hiccup furrowed his eyebrows. "They really did take over when we were away."

The shouts of approaching men caught him off guard. A group of Outcast warriors charged from just around the corner of the houses. Their battle cries ceased the moment they laid eyes on the group of teenagers and the dragon that accompanied them.

Merida smirked as she reached for one of her arrows. "Are these enemies?"

"Looks like it," Jack added. Rapunzel grabbed her whip and lashed it at the ground once for a feel. Toothless turned and growled, his teeth appearing from his gums.

The Outcasts started murmuring among themselves in surprise. "Look!" cried one. "It's the Hiccup boy and his dragon! The boy is back."

"Relax, just separate him from his dragon and we can easily take him on," whispered another.

Hiccup's anger and disbelief dissolved within seconds. Those emotions had morphed into determination. He didn't had a chance to fight for his home three months ago. But he did now.

Hiccup stepped forward. "Hey Outcasts!" he declared. His left hand swiftly moved to the hilt and Hiccup drew his blade. "Don't think I was the same as I was three months ago."

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I would like to thank both old and new readers! Just checking this story out means a lot to me. If you are interested in reading the previous installments of this fanfiction series, they are both posted on the website and are entitled "Defenders of Realms: The Gathering" and "Defenders of Realms: Preparations".

The next chapter will be entitled "Hideout".