Hi guys! Ok idea for this story came when looking at the cover picture online. I like how Rapunzel can't see him in this picture. Eventually she will see him of course in this fic but not yet. Ok Disclaimer time; I don't own Tangled or Rise of the Guardians. Chapter 1 lets see how this goes;

Prologue

Jack flew over the kingdom bringing snow days to the children; they would love it, as they always did. Watching the children's faces light up almost helped ease the pain of being invisible. They screamed with joy as the fluffy white specks floated down to stick to everything. Jack smiled fondly looking at the children scramble around in the snow that he had created. But he always had to leave to soon, far to soon. As he started to make his way towards the next kingdom he noticed something that he didn't remember being there. A tower. The tower was unnaturally tall, with one entrance he could see, a large window, slightly ajar. Music floated out of the window soft and beautiful. Jack hovered closer, pushing the window slightly so he could get a glimpse of the singer inside.

"Chestnuts roasting over an open fire, Jack Frost nipping at your nose." A small blonde girl sang in a clear soprano, her hair trailed a few feet behind her and she kept tripping over it as she danced about.

Jack chuckled "Nipping at your nose huh?" He said quietly to himself "They make it sound like I'm an excitable puppy." Jack leaned in to listen to more of her sweet carol, it was one he had heard many times over the years, but when it was sung by Blondie here (Jack had decided he needed to call her something other then little girl.) it was like hearing it for the first time. He didn't know why, but Jack was immediately taken by this small girl. He didn't care that she couldn't see him, that didn't seem to matter anymore.

"I'm home Flower!" A sweet motherly voice called from below. Jack could make out footsteps coming up towards the room.

"Hi Mommy!" The girl called running towards the door her long hair dragging behind her.

"Mommy's a bit tired, I'd love it if you could sing to me dear." The raven-haired woman requested leaning back in an armchair by a 4-poster bed.

"Yes Mommy." The girl said cheerily handing her mother a brush and a bundle of her golden hair.

"Flower gleam and glow, let your power shine. Make the clock reverse bring back what once was mine." Right before Jack's eyes Blondie's hair started to glow visibly anti-aging her Mother. "Heal what has been hurt, change the fate design. Save what has been lost, bring back what once was mine. What once was mine." As she finished her pretty little song, her hair ceased glowing and went back to its bright yellow color.

"Thank you Rapunzel." Her mother said and Jack got the feeling that she wasn't just thanking her for the song. She was using the song to keep herself young. There was something shady about Rapunzel's mother that made Jack nervous. The darkness surrounding her reminded him strongly of Pitch. But only innocence and loveliness surrounded Rapunzel. It haloed her in golden light only seconded to her bright hair.

From this moment forward Jack promised himself he would protect her from the darkness that surrounded this place. Even if she couldn't see him.

10 years later.

Rapunzel sat on the rafters of her tower bedroom contemplating where to paint, the walls were all but covered, but there had to be room somewhere right? Interrupting her thoughts a familiar blast of winter air burst through the room, she could never quite tell where the wind was coming from, it burst through the window even when it was latched sometimes bringing white bits of snow along with it into her tower. Every day during the winter and sometimes in late autumn and early spring this familiar gust of wind would come making her long hair (70 feet to be exact) drift this way and that. She didn't mind, she felt the wind was almost like a friend, when her mother was being particularly brutal the gust would make frost crawl up the walls of the tower decorating her paintings with intricate curly-cues or make snow drift down to her bedroom floor in wonderful white drifts she could roll and play in. When she sang the wind was there almost harmonizing with her carrying her voice on its back. To her the winter wind was almost human. She couldn't of known it actually was.

Well almost human. As much as Jack tried to be a human he was not. He was the winter spirit Jack Frost, doomed for all eternity to bring the snow and frost with winter, to never be seen by anyone, not even the people he longed to be seen by the most. Jack visited the tower every day he could for ten years now, he made sure that Rapunzel was happy, that her mother was not plotting something, and then he left to return the next day. He still didn't trust Mother Gothel with Rapunzel. Jack feared that one day he would return to find the tower empty with Gothel and Rapunzel holed up in some cellar, Gothel hording Rapunzel's healing powers. He still believed that there was something about Pitch in her, he couldn't quite put his finger on it but there was something wrong about her.

Jack sat on the rafters with Blondie whistling an old tune while she worked, loosely holding his staff in hand. With every year she grew more beautiful to him, until this year he didn't think she could get any prettier, he wanted her to see him to believe in him. But he knew beyond a doubt that could never be. It was his greatest fear that no one (especially Rapunzel) would ever realize he existed.

And Pitch knew that, he knew that Jack Frost the Guardian he despised the most had found a love that could never be. And he found that delightful. It was almost to good to be true, Jack, his love, and a person which he knew he could easily sway to join him in the same tower. This woman, Gothel had been one his radar for many a year, hoarding the suns healing powers, stealing the child, that was good, the stuff of nightmares for many parents. He respected this woman and saw the blackness in her heart. Blackness that would be put to good use when he began his scheme. For deep in Pitch Black's cavern he was planning to put an end to Jack Frost once and for all. By getting to him through the person he loved the most, even if she couldn't see him. Rapunzel.

A/N: So what'd you guys think? Any good? Any changes I need to make? Please let me know I'll be happy to change anything you think I need to.