Author's note: I had recently watch Frozen and I haven't stopped. As an aspiring storyteller, I thought it might be fun to bring two stories together that really caught my interest, Rise of the Guardians and Frozen. More specifically, I enjoyed the idea of Jack and Elsa together.

However, This isn't just a love story. What I truly enjoy is the reconstruction of a universe as well as the connection between all characters and their different ways of interacting with each other. Because of this, I would like to ask that you watch both Frozen and Rise of the Guardians before reading to truly enjoy the dialogue and relationship of each character in the fanfiction.

I would also like to say that I have little to no intentions of making up new characters to add to the story if it can be avoided. If a character is named or described that seems unfamiliar to you from either movies, there is a good chance that

1.) It was a very minor or very brief cameo of a side character that I decided to name and/or use.

2.) It is a part of the lore in the existing universe (i.e. Tsar Lunar who is also known as the Man in the Moon).

3.) It is a character from another movie that may be canon to the story of one of the movies (i.e. Rapunzel from Tangled)

Finally, I would like to note that I will do my very best to keep all events within the realm of possibility in the universe as well as keeping timelines as consistent as possible. However, this doesn't mean it will perfectly line up due to the fact that specific dates were never mentioned. Regardless, I will try my best. Now that I've done my rambling, I sincerely hope you enjoy this as much as I enjoyed writing this. There will not be another author's note until the very end, god knows when that will be. This is to not ruin the immersion of the story while reading. (Note: I do have an end idea in mind, but the journey is always the hard part to flesh out). So any questions people have throughout this crossover will not be answered until the very end. If you really need an answer, PM is always an option but I can't promise I will be able to answer.

P.S. I would like to thank Shioshiorz for allowing me to use her lovely art piece as the cover for this fanfiction. Please do visit her on deviantART if you like the art style.

TL;DR - Watch both Frozen and Rise of the Guardians first and enjoy!

"I'm bored!" the winter spirit cried out. It had been over 20 year since Jack Frost had earned the title of Guardian. However, with the title the days only felt longer. After over 300 years, finally being seen only made him crave it more. "Can't do many snow ball fights while in summer, can I?!" Jack shouted, looking towards the moon. As his frustration subsided, he sat atop a tall oak tree where he had first been declared a Guardian. "Finally being seen makes it a hundred times worse when you're not."

*Tap, tap*

Looking over his shoulders, Jack noticed a tiny man shimmering in gold with shining bright sand circling the air. Above him, there stood the Sandman. "Oh… hey Sandy." Jack said solemnly. Sandy had a concerned look and a question mark over his head, wondering about Jack's distress.

"Sorry Sandy. I was sort of expecting someone else, I guess. But, don't mind me though, I'm fine." Forcing a chuckle to try and alleviate Sandy's concerns.

It didn't work, but Sandy didn't want to pry too much into Jack's thoughts. More to the point, he came to bring Jack to the North Pole. The Man in the Moon had sent a message and Jack was the recipient.

As Sandy guided Jack to North's workshop, Jack could only wonder about his lonely life that felt even emptier. North had his yetis and elves, Tooth had her fairies, Bunny had his weird stone eggs and even weirder eggs with baby legs. As for Sandy, he had all of the children of the world to play with every night. Before he could finish his train of thought, Sandy tapped his head. They had reached the North Pole.

"Alright, Big Red, I'm he— umph!" Jack stammered as North picked him up in a great bear hug.

"Jack! There you are! It's been long time, has it not! Why do you not visit during winter?" The very large man in red asked, staring down at him. The large man stood almost two heads over Jack with a beard almost as white as his hair and eyes just as blue. If not for North's Russian accent, you might think they were related. Then again, they were both winter guardians.

"Sorry Red. With winter being my specialty, it's hard passing up hanging out with kids, going on sleigh rides and snow days. Plus, I just got used to being seen by people. Can't let these opportunities pass. Yah know?" Jack muttered with a guilty smile and a quiet chuckle, hoping the excuse would slide.

"Hmm… It's busy around winter indeed, especially Christmas. Still! Plenty of time in spring and summer and—" North was cut off by a large fairy fluttered with a hue of yellow, green, and blue feathers over her entire body.

"Jack! It's been so long! I've missed your pearly white tee— I mean hair! How have you been?" The fairy asked in excitement. Jack was aware of the Tooth Fairy's obsession with his teeth. Who could blame her? They shined as white as snow.

"Hey Tooth… eye's up here." Jack said jokingly, looking at the slightly embarrassed Tooth. Before Jack could speak again, another familiar voice was heard and it wasn't quite so happy.

"G'day mate… Been a while." A very large rabbit stood by the bookshelves behind North. "Yah know, since Easter a few years back?" He stepped out of the shadows and shot a glare at Jack. "When you graffitied all my eggs blue with snowflakes!"

Oh boy, he was mad. Very, mad… "Hey, hey, heeeeey. It was just a little prank between friends. Little pranks are fun, right?" He mumbled, another guilty smile over his face and rubbing the back of his neck. "And it wasn't so bad… All the eggs made it on time and everyone loved it!"

"Almost one third of them popped out snow! Snow Jack!" Oh dear, Bunny was fuming now. This might take some effort to settle him down. "You don't see me in your face throwing eh… eggs at… yah… your…" A golden lace of sand traveled over Bunny's eyes, putting him to sleep on the spot. His face planted on the lacquered floor. Jack sighed in relief. Sandy had defused the situation and presented a much more entertaining opportunity.

"It's always nice to be reassured of why he's called 'cottontail'." Jack smiled mischievously, tugging on Bunny's tail as he thought of more pranks to pull. His thoughts were cut short when he noticed Sandy giving him a look and a disapproving smirk that said to not even try.

"Okay, okay, fair enough. So what's going on North? Why'd you call us here?" Jack questioned the large man. Sandy had only told him that North was delivered an important message. He didn't say who it was from.

"Yeah North, what's going on? Is it urgent? The invitation was on short notice." Tooth asked with a look of confusion.

"Ah, yes! Important message sent for you, Jack!" North said, poking at the pale boy's chest. "And no worries, is not bad news! If it was, I would have called with northern lights. But this! This is fantastic news! Fantastic message from Man in Moon!"

Tick! Something went off in Jack's head. Pieces were coming in place. I called out to the Man on the Moon. Next thing that happens is a message sent from the big moon himself. The big moon to… North? "Wait, why did he send it to you if it was for me?" he questioned, slightly irritated by the turn of events.

"You have globe?"

"Globe?"

"Globe! Man in Moon likes to speak with lights. Globe makes it easier to see messages from him. Look!" North explained as he held the snow globe in the light of the moon. Suddenly, the light in the globe began to take shape. "When he sent message earlier, image of you appeared, Jack. Naturally, it meant he wanted to speak with you." North explained, proudly.

A grin formed over Jack's face, "A globe, huh?"

The snow in the globe began to dance and swirl. Suddenly, a snowflake crystal appeared. Everyone stared intently at the globe, except for Bunny who was still asleep on the floor. Sandy snapped his fingers to wake the sleeping rabbit up. A message from the Man in the Moon was a very important message for everyone. As bunny regained his senses, a storm began to take form in the snow globe.

"What's happening? This does not seem like 'fantastic news'." Tooth asked, looking more concerned than before. This was clearly an urgent message. Why was it for Jack and not everybody else? "Jack, do you know what's going on?"

"No, I've never seen a snow storm like this. This is completely different from anything I've ever seen." This was a very hard thing for him to say. He's been the spirit of winter for so many years. For him to see a storm that not even he could fathom; his comment only made everyone more uneasy for what was to come.

"Well, less happy than I thought." North sighed. This was going to be a long night. Suddenly, the snow storm within the globe settled, revealing a large kingdom in a fjord. North's eyes widened as if he had seen a ghost. "Arendelle…"

"What do you mean 'Arendelle', mate?" Bunny emphasized. He was now wide awake and looking at the globe in utter disbelief. "Arendelle's been lost for centuries and, if I remember correctly, it was because of that very same snow storm."

"What's Arendelle, North?" Tooth questioned. She was confused as to why she'd never heard of the place.

"Arendelle was a great, big kingdom in Norway. Found in river between two grand mountains. Mice fairies are one's who take care of Europe tooth, no?" North explained, trying to keep his composure. This was clearly a touchy subject for him. "This place is why winter is forever a part of my wonder." He chuckled to himself, tapping his belly.

"Would have been a lot less wonderful had Sandy and I not found yah." Bunny scoffed. Dreamsand appeared over Sandy's head, rapidly reconstructing and deconstructing various shapes and images in an attempt to explain what had happened back then.

"Okay, Sandy, Sandy… Sandy! Calm down! That isn't helping to explain why it's showing this to us. Why the big guy up top is showing us this." Jack said, looking out the window for a better explanation.

"Yes, you're right. Why is Moon showing us this? What is past is past, what is done is done. We can't save what is in past."

"We couldn't even save it when it did happen." Bunny said begrudgingly, cutting off North. The room went silent. The light in the globe had disappeared, only leaving a layer of snow in the form of the Arendelle kingdom.

The workshop remained silent for several minutes. North had left the snow globe on a workbench. Everyone migrated themselves to the office room of North's workshop. The large man in red was preoccupied with rigorously searching through various books on his shelves. Bunny and Sandy sat on the floor playing rock, paper, and scissors; Sandy winning eight of the ten games. Jack leaned against the door, pondering to himself about the message. Tooth sat next to him trying to recall this "Arendelle storm."

"So… Arendelle… clearly this means something to the three of you." Jack spoke, breaking the silence. "But what does it have to do with us, with me, with the cue ball in the night? Speaking of which, can't he give a better explanation than a light show? I mean, he called us out for—"

"Ah hah!" North shouted, cutting Jack off. "Here it is! The story of Arendelle." He brought over a roughed up book to his desk. "This is stories of Arendelle before big snow storm."

"How's it gonna help us? We already know all there is to know about Arendelle when this happened the first time. We don't need a history lesson. We need a weatherman, mate." Bunny put two fingers up in the shape of scissors. Sandy giggled as he looked at his closed fist in victory.

"Is good to think about future, Bunny. But, is also good to observe past too. Hmm? Something must be going on here. Ah! Found it! Kingdom of Arendelle and the lost heir…" North continued to read to himself. "Wait… heirs?"

Tooth finally spoke up. "So, is this lost heir tied to all this? Should I look through my memory banks back at the Tooth Palace?"

"No, there is none. She was lost on day of birth…" North stammered but continued on reading. "A cold weather, never seen before, shadowed over Arendelle. After three years of the unforgiving tundra, Arendelle was finally consumed by a great storm on the day of the untimely death of the second heir to the throne…"

"Okay, bummer. But, why is this important now?" Jack was unsatisfied with the new information.

"Because that ain't right." Bunny interrupted, hopping over to North. Sandy nodded in agreement. Clearly, something was up. "If I remember the stories correctly, the storm wiped out Arendelle when the first heir died. I never heard of any second kid too. Also, a winter that plagued the lands for three years, I would have known about it."

"So would I." North looked perplexed by the literature in the book.

"So the book's wrong. History books are always wrong. We all know this. We're proof of this!" Jack affirmed, trying to reassure them. "The books probably got some details off. Instead of one kid, it was… two…" The room went quiet.

"Two kids and three years yah dope." Bunny corrected, smacking Jack in the back of the head. "Even if the book was wrong, three years is a big difference compared to something that wiped out a kingdom overnight."

"So… you're saying time was changed?" Jack let out an uneasy chuckle. "Is that even possible?"

"That's right, Jack! Is very possible. Someone or something is messing with time line." North continued to read on to find more inconsistencies.

"Wait, it is? But… how? Also, why did the Man on the Moon call for me specifically? Why me and why now?" Jack wondered without realizing the breeze in the closed room. Sandy was the first to take notice. A breeze slowly filled the room and the golden man was trying to tell everyone what was up. However, they were too preoccupied with the information at hand.

Tooth was asking Bunny about these changes in the events and North was still looking through the raggedy book. Something else caught Sandy's attention. There was a growing light in the room, the light of the moon. Before Sandy could even try to get everyone's attention, a huge gust of wind blew open the windows and flooded the room.

"What's going on?! Jack, is this you?" Tooth shouted.

"It's not me! I don't know what's going on! Uh… Wind! Stop! Bad! Uh… uh… Shoo!" To no avail, the wind wasn't stopping for anything. The powerful gale blasted Jack, slamming him into the door behind him. With his staff at hand, he tried to block the wind with all his might. The door finally broke open, sending Jack flying into the large room filled with toys.

"Jack!" North called out as he watched Jack fly out the room. A strand of sand whipped past North's face and into the hall, catching Jack's wrist.

"Don't let go, mate! Who knows where that wind'll take yah?!" Bunny screamed, holding onto Tooth holding the window sill for dear life. The two guardians caught a glimpse of the snow globe the Man in the Moon used to communicate with them. With Arendelle still in the globe, the wind sent the globe flying into the wall. Instead of shattering, the globe burst open a portal, revealing a sun-filled Arendelle.

"Jack, hold on! Don't let go!" North made his way to Jack, slowly sliding down Sandy's rope to reach the winter guardian at the other end. "I'll come get you! Don't not worry!"

"That means, 'Do worry'!" Jack cried out, slowly losing his grip of the golden sand. Then he finally caught a glimpse of the portal behind him. "— and I absolutely agree with you!"

As North was about to reach Jack's hand, a final gust of wind surged through the air, forcing Jack to lose his grip.

"No!" North cried out, stretching his foot out towards Jack. "Catch it, quick!" the large man commanded. Jack caught the foot of North's leg with his staff.

This was it he thought. His life depended on this guy's foot. It was either the foot or being sent into a portal who knows where. Then he started thinking. This is it. A smirk spread over his face.

"Don't worry, Jack. This isn't end! My foot has you and I have strong foot!" North tried to reassure him as he climbed up Sandy's rope. "Don't let go!"

"Hey, North."

"What, Jack?!"

"Take care of winter for a bit, would yah?" Jack asked as he unhooked his staff, sending him flying into the portal. The spiraling doorway closed in on itself instantly, leaving behind an empty snow globe.

"Jack, no…" Tooth whimpered. The wind died down and all was calm again. However, before anyone could think of Jack's disappearance, a figure dressed in white picked up the snow globe on the ground. The surprises did not want to end.