A/N- Hi peoples. This Rotbtd crossover was an idea that suddenly popped into my head out of nowhere and thought, what the heck? Giving it a try so hopefully you guys like it. Oh and also this takes place after all events in movies so including HHTYD 2.

Jack Frost was having a normal day brining winter and fun to the world. He never got tired of seeing the children smile while playing in the snow. He hadn't heard from his fellow guardians in a while so he was happy not to have to listen to Bunny ramble on about how he's an irresponsible teenager, even though he knows he is. Jack continued to fly around for a little while leaving an ice trail everywhere he went.

Soon enough it got dark and that meant Sandy would be here soon. Jack sat on a roof looking up at the cloud filled sky just trying to think of something fun to do. He was snapped back to reality when a string of gold sand went right by him. He got up and flew to where the sand came from and found none other than the Sand Man himself.

"Hey Sandy. What wonderful dreams will the kids get tonight?" Even though he asked, he knew he wouldn't get a direct answer seeing is though Sandy cannot talk.

Instead Sandy smiled and made a thumbs up above his head. Jack chuckled at how Sandy communicated. They hung out in the sky for a while before Sandy's smile turned into a frown. Jack noticed and said,

"Hey Sandy, what's wrong?"

Sandy ignored Jack and started flying down towards the town to find whatever it is he was looking for. Sandy kept flying up to windows and looking into them to see if the kids were still sleeping with Jack following his lead confused. The confusion ended once they came to one window in particular.

There was a child sleeping peacefully in its bed with the dream sand right above him showing the dreams. Jack was about to leave thinking nothing was wrong until he saw the gold sand turning black. That could only mean one thing. Jack and Sandy looked at each other with worried faces then took off into the sky. No surprise in where they were going.

Sandy and Jack landed at the North Pole and found North in his office playing with toys…again.

"Ah Sandy, Jack god to see you both! Wow Sandy you finished your night shift already? You are improving." North said while laughing.

Sandy raised an eyebrow then shook his head trying to tell him that's not why they're there. North got confused and then Jack spoke up,

"Sandy and I saw a child's dream turn into black sand. But that can't be, we defeated him a long time ago."

"Well he was defeated long before you came along and he came back then. But no matter what we need to protect the children." North said.

"Yeah I get that but what if he's stronger this time? Will we be able to stop him again?" Jack asked.

"There's only one way to find out."

With that, North set off the Northern lights and signaled the other guardians. Tooth came pretty fast then shortly after Bunny came up through a hole in the ground to North's workshop.

"Ah just great! What did this block of ice do now?" Bunny asked gesturing to Jack.

"Whoa okay for once I didn't do anything. I actually spotted the trouble." Jack said proudly.

Sandy nodded his head to let Bunny know that he was telling the truth. North then explained what Jack told him to Tooth and Sandy. Bunny and Tooth were shocked and also worried. But then the moon started to glow and this time everyone noticed. The pillar with the crystal rose and everyone prepared themselves for the new guardian to be revealed. Only it showed three, a boy with brown hair about the same height as Jack, a girl with very messy hair and bow and arrow, and lastly a tall girl with long blonde hair.

"Wait, those are then new guardians? But are they even spirits?" Jack asked.

"No but not every guardian has to be a spirit. But look they each represent a different season." Tooth said.

"Bet you they'll freak out when they realize they have powers." Jack mumbled towards Sandy.

"Well someone has to go get them and explain everything to them," Bunny said, "and it isn't going to be me, I still got a lot of eggs to prepare."

"Well I can't do it. I have my fairies and teeth to look after." Tooth said.

"I've got toys to test!" North shouted.

Sandy shook his head and that left only one other person.

"What? Oh no, no, no. I'm busy too you know."

"Doing what? Playing jokes on kids and their parents?" Bunny asked.

Everyone was now staring ta Jack and he finally gave in. North gave him some of his portal globes and Tooth gave him a big hug. Bunny just rolled his eyes then left. Of course North also told Jack where to find them before he left.

Jack flew up into the sky and got out a globe. Alright where to first? He held up the globe and whispered, "DunBroch." The portal then opened and he flew in.

…

Merida woke up with a smile on her face and quickly got dressed. She then rushed downstairs to get her bow and arrows and Angus but before she was even out the door, her mom saw her.

"Merida, where are you going?"

"Just for a ride with Angus. I promise I'll stay safe."

"Alright but be back before dark."

Merida nodded then ran out the door to the stables. She immediately hopped on her horse and the two took off into the forest. She knew the targets would be coming up soon and got her weapon ready. She drew back the arrow and released it right to the center of the target.

Merida continued to hit every bull's-eye until the trail of targets ended. She turned around to go back and collected most of the arrows she shot, seeing how she was almost out of arrows when she ran out of targets.

"What do ya say Angus, take a little break?" Merida asked her horse.

Angus neighed as if to say yes and they walked towards the stream. Once they got there, Merida hopped down while Angus drank. Merida sat down beside her horse and watched the birds flying free in the sky. Sometimes she wished she could fly like them. Merida was starting to relax when something weird happened.

In the sky a hole opened and something came flying right out and crashed into the forest. Merida immediately got up and hopped back on Angus to see what just happened. She rode to where the crash happened and was shocked at what she saw. A boy with very white hair and some odd clothing was walking around with some sort of cane looking thing. Merida couldn't believe it. Wasn't this what just crashed? She thought. Merida got her arrow ready and slowly approached the boy.

….

As soon as Jack flew into the portal, he immediately began flying out of it. He was going to fast towards the forest floor. As he was about to touch the ground, Jack was able to stop himself from actually crashing into the ground, so instead he landed. He started walking around unaware of the arrow about to be fired in his direction. Jack then heard something and saw the arrow coming. He dodged out of the way in time before the person who shot the arrow came out. When he saw her he didn't think before saying,

"It's you."

"Excuse me?" she said harshly.

"You are the one I was looking for. Well this was easier than I thought."

"Hold your horses lad. Who are you?"

"My name is Jack Frost and- wait, you can see me?" Jack just realized.

"Well of course I can see you. Wait did you say Jack Frost? As in the spirit of winter?"

"Yep the one and only. Um you might want to calm down there red." Jack pointed at her.

Merida gave Jack a confused look until she looked down at her bow and saw it on fire. She quickly dropped it and then it went back to normal with not one burn mark. Jack figured it out but Merida was still confused on what was happening.

"Look if you promise not to attack me I'll explain everything." Jack said.

Merida nodded and listened to what jack had to say. He told her about the other guardians and their duties. Then Merida asked why her bow lit up and Jack told her that it was herself that made the fire. Merida was very confused but then Jack explained about his powers and Pitch. He told her what Pitch did and how they defeated him. Then he told her about what he saw with Sandy and how the gold sand turned to black sand. The last thing Jack explained to Merida was about how Man in Moon chose her and two other kids to be guardians.

"My best guess is that you are the guardian of summer. Must be why you can make fire." Jack told her gesturing to her hand.

"Wait so I'm a spirit now?" Merida asked a little confused.

"No but technically yes. You're a not dead spirit; yeah that's how I'll put it."

"And there are two other guardians out there?"

"Yes."

"And they are the guardians of the other seasons, spring and fall?"

"Yes."

"Wow! This is the most amazing thing that has ever happened to me besides from getting my mom back."

"What?"

Merida didn't have time to answer that question because nightmare horses started coming out of the bushes and surrounding the two kids. Merida readied her weapon and Jack held his staff. The first nightmare striked towards Jack who shot ice at it and disappeared. Another jumped towards Merida and she released the arrow right into the nightmare. This continued for a short minute before the nightmares stopped and moved out of the way to let someone through.

Pitch Black walked up to them and chuckled evilly.

"Well what a nice surprise." Pitch said.

"Can't say the same for you." Jack snapped back.

Merida drew another arrow and this time lit it on fire. Then she asked Jack,

"Who is this?"

"The name is Pitch Black although you might know me better as the boogeyman," Pitch answered, "you can put down your weapon now it won't help at all." Merida didn't lower her bow.

"I thought we defeated you. How did you come back?" Jack asked.

"Ah yes you 'defeated' me. It's quite simple on how I came back. I just built up enough fear to give me strength."

"Why are you here then?" Merida asked.

"Well you can't collect fear without a little help."

Then a big black bear came out and growled towards Merida. Once Merida saw the bear she stumbled back a bit but held the arrow ready.

"Mordu? How is this even possible? We killed you."

"My strength brought him back. But trust me he won't be the only one on my team."

"Same goes for me Pitch. I still got two more people to get to." Jack said.

"Yes that is true, not unless I get to them first." With those last words, Pitch, his nightmares, and Mordu disappeared leaving a terrified Merida and angry Jack Frost.

"Great now how are we going to get to others before him?" Merida asked.

"Oh we'll get there but I don't know if we'll get there before him." Jack answered.

Jack took out a snow globe and whispered Corona into it. But before he jumped through Merida didn't seem fully convinced to go through the strange hole.

"You wanna be haunted by that bear forever?" Jack asked.

Merida sighed and hopped in after Jack.

Review to tell me what you think. I'm making Rapunzel's hair long again because to be honest I like it better that way and don't worry I'll have something for it growing back. Until next time…