Wow! 2 chapters in one day?! I feel like I'm spoiling you guys :P

Slightly over 3 years later

Elsa heard a knock on her door. "Elsa.. Happy Birthday!" She smiled.
"Thanks Anna!"
"It's been snowing again"
"Jack!" Elsa whispered, smiling. Anna didn't hear her.
"and I was wondering if.. well.. Do you wanna build a snowman?" Anna asked through the door.
"No, Anna! Why don't you go and build one though?" Elsa said. She heard Anna walk away.

She then heard 5 familiar knocks on her window. "Jack!" She called. She had left the window open, it was always open these days.
"Hey there!" Jack said. "I heard it was a certain princess' birthday today.." He floated into the room. He gave her a snow white box tied up with an ice blue bow. She took it and opened it, it was a charm made of wood shaped like a snowflake. He gestured for her wrist and took the charm. He undid the bracelet and fixed the charm in place with the others. On her 13th birthday he made her a charm bracelet and a charm of Ice-Skates. He then took her Ice-Skating on his pond in Burgess. Making blades of ice on the bottoms of her shoes. When she was 14 he made her a charm of a snowman and they made snowmen and had snowball fights all day. On her 15th she got a charm of a reindeer and they tried to break into North's workshop to see some but Phil stopped them, they settled for riding wild reindeer instead.

"You've improved!" She told him, examining the charms around her wrist.
"Do you think so?" He asked her.
"Yeah, I mean look at the skates, they have no texture or detail or anything but this snowflake is amazing!" Jack's cheeks went a light blue, his version of blushing. Elsa laughed.
"Thanks, I guess I have improved a little bit." He laughed. "It's all this practice!"
"So, what do you have planned for today?"
"I thought you might like to help me make it snow somewhere.." He said, shyly.
"I'd love to!" Elsa said, hugging him. "I'm just going to have to wait for lunch first though"

As if on cue the door opened and her parents came in. "Happy birthday!" Her dad said, hugging her. "Who were you talking to?"
"Jack" Elsa said.
"Elsa, imaginary friends are for little kids, you're 16 now."
"Oh, leave her be" The queen said. "I think Jack sounds great." She glanced over to where Jack was standing, he was leaning on his staff.
"Can she..? Can you see me?" He asked her. She nodded. He stopped leaning on the staff and walked over to Elsa "But.. What..? How..?" She laughed and both Elsa and Jack looked at her as if she was crazy. "Have you always been able to see me?!" She nodded again.
"Elsa, eat up or you don't get your presents" Her dad said, oblivious to Jack.

"I'll tell you a story of a boy named Jack Frost while you eat." Her mum promised.
"Jack Frost?" Elsa asked. Jack was interested too.
"Yes" the queen said, laughing. "Once upon a time there was a boy. Jack Frost. He was granted powers to control snow and ice by an unknown-"
"The man in moon" Jack interrupted.
"By the man in the moon." The queen corrected. "He used this power to bring winter."
"Did winter not come before he was made?" Elsa asked.
"It did." Jack said. "I just help Old Man Winter bring it to the places he misses." He explained
"Okay, never mind." Elsa said, aware that her dad couldn't see or hear Jack.
"As I was saying, Jack helps Old Man Winter bring the winter season and he sprinkles an extra little bit of fun and snow here and there." Elsa laughed through a mouthful of food.
"Elsa! Where are your manners?" The king said. "I'd expect that sort of behavior from Anna, not from you!"
She swallowed, "Sorry dad.."
"But there's a catch!" Her mum said.
"What?" Elsa said, through another mouthful.
"Elsa!"
The queen laughed. "He can only be seen by those who believe he is real." She explained. "Unfortunately, not many people do as he is a rather new spirit."

"Spirit?" Elsa asked.
"Like the Easter Bunny"
"E. Aster Bunnymund, he doesn't like me that much" Jack said. Elsa stifled a giggle.
"Or Julenisse."
"Nicholas st. North, he has Yeti body guards, they don't like me either" Elsa succeeded in holding in a laugh, remembering when they tried to break in the year before.
"Or the Tooth Fairy."
"Toothiana, I've never met her, I hear she's a nice girl though." Elsa tried and failed to hold in her laugh. "How was that funny?" Jack asked. The queen laughed too. "I'm being serious here!"
The queen managed to get back on track. "And even the Sandman"
"Sanderson McSnoozie. He's really short and as far as I know he never talks." Jack said.

"How do you know so much about me anyway?" Jack asked the queen.
"That is a story I was told by my mother. She claimed to have seen Jack once and that somehow convinced me that he was real as I grew up without knowing better. I told you that story quite a lot when you were younger, you seemed to like it that he had the same sort of power as you."
"Ah, that explains why you can see me then" Jack said to Elsa who had just finished her lunch. Elsa smiled at him.
"So, Elsa is pretending that this Jack Frost is real and is her imaginary friend?" Her dad asked.
"Something like that." Her mum told him. Her dad laughed a little.

"Anyway, here's your present from Anna!" Her dad said, giving her a small parcel. She unwrapped it and found a badly crafted wooden snowman.
"Olaf?" Elsa whispered, crying a little.
"She insisted on making it herself" Her dad said. "So it might be a bit bad although I did help a little bit."
"No. It's perfect!" She clutched the little model in her hand and then put it on her desk. Her parents smiled.
"We'll tell her you liked it!"
"And here's our present" Her dad said, giving her a slightly larger parcel. She unwrapped it and laughed a little. It was a book.
"Another book?" She asked, looking at her shelves of books.
"We thought you might like it."

She turned it over and looked at the title. "Gulliver's Travels." She said. "Is that English?"
"Yes, we had it translated for you though" Her dad said. She smiled. Her dad hugged her and left. Her mum was about to leave but then Jack called for her. "Wait. Please" She turned and told her husband she'd leave in a minute.
"What is it Jack?" she asked when the king was out of hearing range.
"You could see me all this time and you never said anything?"
"I didn't see the need to."
"Yeah, but it's still nice to know who believes in me." Jack said.
"Can I just say, your Norwegian is excellent." The queen said.
"Thanks, I learnt it when I was a bit younger, I guess it's improved a little from talking to your daughter." Elsa laughed.
"A little is an understatement."
"Was I really that bad?" Jack asked, hurt. He leaned on his staff.
"No, but you've improved a lot, not a little." Elsa said.
"Well, okay then." Jack laughed. "Your majesty." He said, addressing the queen and standing straighter. "Would you mind if I were to take your daughter for an hour or three?"
"No, but please, Elsa, don't hurt yourself okay?"
"I won't mum!" She said.

Jack took her hand and called the wind. The queen gasped when it picked up and Jack laughed. "I'll return her soon!" He said as they flew off into the night.
"I can't believe she could see you all this time but didn't say anything." Elsa said.
"I know! Anyway, where do you wanna go?" He asked her.
"How about where you come from, Burgess, where was it again?"
"Pennsylvania, it's in America remember, we went there a couple of years ago." Jack told her as he changed his course. They arrived in Burgess in the early afternoon. "Let's make it snow then!" He said.

Elsa released her power to the sky to make it snow, as Jack waved his staff, also making it snow. "If anyone sees you we'll have to leave!" He told her. "We're lucky you were born in December, that's winter for half of the world." They made it snow and had a snowball fight before Jack realized that they should probably be heading back to Arendelle.

They got back just before the king and queen came in with Elsa's dinner. "Why do you have snow on your dress Elsa?" The king asked her.
"I was playing with Jack!" She said. She and Jack burst out laughing.
"Is that so?" Her mum asked.
"We sort of lost track of time, sorry." Jack said to her.
"Why is your window open?" Her dad asked her. "Do you not feel the cold?"
"The cold has never bothered me dad, you know that!" She told him. Jack watched as the king, queen and princess talked and then waited for her to fall asleep before going to leave, as usual.

"Jack" Elsa said, hearing him.
"Yeah Elsa?"
"Come back soon please!" She begged him.
"Don't worry Elsa, I will! I promise!" He said. Elsa got up and hugged him.
"Thank you!" She said. He smiled and flew out of her open window. She watched her one friend fly into the distance until he was no more than a speck and then gone. "Thank you Jack Frost!" She said before going back to her bed.

Ah, that was nice.

I don't know why I have everyone being into wood crafting.. It just seems right for the time period. (mid 18th century.)

I sort of realized that Jack must have been speaking Norwegian so I needed to explain that a little bit.

It took forever to figure out which book to do as I wanted her to get the Grimm fairy tales but that's about half to a full century later so I settled for Gulliver's Travels instead.

Please don't forget to review!
(Constructive criticism is encouraged!)