Jack was in North's workshop, bored out of his mind. He was fine with Pitch being gone and all but he sure missed having something to do. The other Guardians were way too busy to do anything with him. He felt alone, in a way. Sure people were able to see him now but no one really knew what it was like to have Ice powers.

That's when Tooth came into the workshop, flying at high speeds and squealing like a teenage girl at a One Dierection concert. "Jack, Jack, Jack!" Tooth squealed as she flew towards him. "You will not believe what happened today!"

"Let me guess," Jack said sarcastically. "A child lost a tooth, right?"

Tooth huffed. "Not just any child Jack," Tooth said. "The child that lost a tooth was Princess Elsa of Arendelle!"

"And that has to do with me because-"

"Because Elsa is no ordinary child. She has Ice Powers!"

Jack froze- well, in shock, not ice. You know what I mean. There was someone else out there that was like him.

****************************

Tooth and Jack flew to the land of Arendelle and made sure to sneak into the castle quietly so no one would notice anything strange. "In here." Tooth whispered to Jack as they made their way into Anna and Elsa's bedroom. Inside they found Anna and Elsa fast asleep with a light snore coming from Anna.

"Here we go." Tooth said as she carefully took the tooth from under Elsa's pillow. Jack watched from the other side of the bed and looked at the sleeping girl. She had blonde hair that almost looked like it could be white if it were any lighter.

Elsa turned her head over in her sleep and faced Jack. Her eyes slowly opened to reveal her beautiful blue eyes. She looked at Jack and then blinked. She sat up and looked directly at Jack. "Who are you?" she asked.

Jack didn't know what to say. Tooth was still on the other side of the bed, and gave Jack a bunch of hand signs telling him not to say anything. Jack cleared his throat and then bent down to look at Elsa. "Have you ever heard of Jack Frost?" he asked.

Elsa nodded. "What does that have to do with you though?" Elsa asked.

Jack smiled. She sure was something. "Well I'm Jack Frost."

Elsa gave Jack a questionable look. There was no way that this was Jack Frost. "If your Jack Frost, prove it." Elsa told Jack.

"All right," Jack said. He went over to the window and touched it and instantly, Frost covered it. Elsa's jaw dropped. "And if that doesn't prove anything then this will." Jack blew some air into his hand and formed a snowball in his hand.

"Wow." A new voice said.

Jack and Elsa turned to see Anna up and watching with curiosity. "Can you build a snow man?" Anna asked.

******************************

After that encounter with Elsa, Jack made annual visits to Arendelle. He would show up at night and Elsa would always show him what new tricks she could do with her powers. Jack could always outdo her but she never stopped trying.

One night, Jack made it snow in the ball room with ice on the floor. Anna and Elsa began playing in the snow and Jack threw an occasional snowball or two at the two of them when they weren't looking. While Anna was practicing ice skating, Elsa sat in the snow next to Jack. "Jack, watch this." Elsa said excitedly.

"Okay kiddo." Jack said.

Elsa swished her hands around and formed a large snowflake in her hands. Then she grabbed a small amount of snow on the ground and formed an ice-like string. "It's a necklace," Elsa told Jack as she handed it to him. "Please promise that you'll always wear it."

"I promise." Jack said with a nod as Elsa placed the necklace around Jack's neck.

Anna then came by and the three started playing again. The three made Olaf, did some sledding, and some more ice skating. Then Anna started hopping around on top of snow drifts. "Slow down Anna." Jack warned.

Anna didn't listen though and when Elsa slipped, there was nothing that could catch Anna. Jack was about to run and catch her but Elsa hit Anna in the face with some ice magic and she went crashing into the snow.

"Anna!" Elsa cried as she ran towards her little sister. A white strip of hair formed on Anna's head and Jack just watched in shock. "Mama! Papa!"

'T-this is all my fault,' Jack thought. 'Anna's hurt....because of me.'

The King and Queen soon came in and took Anna and Elsa outside the castle, leaving Jack inside to look at the melting snow and ice.

*******************************

After the incident with Anna, Elsa shut the world out- and that included Anna and Jack. Elsa soon stopped believing in the Guardians and her light on the globe went out. Jack tried to get her to believe again but she just continued to shut the world out. Soon, Jack stopped coming to Arendelle all together. Still though, Anna believed in him and the Guardians. She didn't have anything else to believe in.

As the years pasted, the two princesses grew and matured into young women. One day, when their parents were going on a trip at sea, both of them died in a storm. Jack went to the funeral and made sure Anna couldn't see him. He sat in Elsa's frozen room as she cried. He wanted so badly to hold Elsa and tell her that everything was going to be okay but he just went right through her.