At the same day of the birth of Jack Frost and Princess Elsa of Arandelle. Jack was named after the spirit with the same name and Elsa's codename is the Snow Queen from Hans Christian Andersen's tale. And then after that Mary and Anna were born, but they were born on a different age. Jack and Elsa love their sisters so much they have to protect them.

But ever since Jack fell on that frozen lake in Burgess when he was 18 and Elsa became the Snow Queen when she was 24 and both of them became immortal it was Dec 2013 when 1 year ago when Pitch Black was defeated on spring 2012, Jack Frost was flying around Oslo, Norway. And headed to the nearby rooftop and said to Baby Tooth.

"Hey, Tooth. Wanna go somewhere unknown?"

Baby Tooth nooded. And when Wind came he flies with Baby Tooth. He sees that ice castle that was built years ago but was never melted.

"I wonder who made that castle?" Jack asked

And flies to an unknown island.

"Why did you landed me here Wind?" Jack and Baby Tooth reach Attohalan. There, they encountered a water horse.

"Hello"

The horse neighs.

"A water horse. Seems different to Pitch's nightmare horses." Jack exclaims.

The horse neighs and Baby Tooth is speaking to it.

"His name is Nokk. Nice to meet you Nokk, my name is Jack Frost and this is Baby Tooth.

Nokk neighs again.

"We were searching for the unknown" Jack answered.

Nokk neighs and tilted his head to Atohallan.

"You want us to go in there?" Jack asked.

Nokk neighs.

"Well, if you say so. Let's go Baby Tooth. Welp, into the unknown."

Then they headed to Attohalan finding the unknown. With beautiful ice. Until they reached an icy blockade.

Baby Tooth ponders and Jack harness his ice powers. With frost coming on ice? The ice moved. And they reach to a huge ice crystal.

"What is this?" Jack asked and approaches the ice crystal and sees there is a woman in it.

"What the? Why are you inside there, snowflake?" Jack asked

Using his staff and powers in their full potential. Jack harness his gigantic icy bolt to free the woman. And when she was freed from the ice crystal, Jack Frost carried her like a princess.

Then the woman wakes up and jolted away from Jack "Huh? Who are you? What year is it? How did you find me?"

Jack Frost is trying to answer these questions but he's confused as well.

"Well to answer those questions. My name is Jack Frost. The year is 2014. The Wind guided me here." Jack answered her questions.

"Well I am Queen Elsa of Arandelle, the Snow Queen. I was frozen around hundreds of years that I can't remember.

Snow Queen? How's that?" Jack asked.

"Well I have ice powers since I was born." Elsa answered.

"Well check this out." As Jack conjures a snow flake on his hand. Elsa wowed and she did the same.

"No way. You're just like me." Jack said.

"Yeah, that's why I'm the Snow Queen." Elsa said.

"So you made that ice caste" Jack asked.

"Yeah but it was a long time ago that…. Wait is it still standing?" Elsa ponders.

"Yes it is, my Queen."

"I have been asleep for a long time" Elsa said.

"Well, we'll find the answers to that. Come on Elsa, let's get out of here."

"Don't mind if I do, Jack Frost.