Hey guys, here's my new fanfic, Platinum!

This story came into my head one night while thinking about my other fanfic, Ice Pearl. I got the idea of an OC perfect for Jack Frost.

I do not own anything except my OC.

-Platinum Prov-

"Oh come, I'm perfectly capable of going out into the human world on my own!" I shouted to my twin sisters, Diamond and Pearl.

"Platinum, your still not strong enough to control yourself without slicing something up with your hair," Diamond said, tucking a strand of her straight, bright blue hair behind her ear. Pearl nodded in agreement. Pearl had hot pink, curly hair that, like Diamond's, nearly reached the floor. Her rosy pink eyes stared into my gray ones.

"Even though you are the Spirit of Joy and you want spread it everywhere, the answer is no," Pearl said, a little less sternly than Diamond's. Pearl knows that I'm still a sensitive spirit, which means I could get upset real easily. Diamond, on the other hand, didn't care.

"This is so not far! I almost fifteen and about to become immortal. You two can't tell me what to do anymore and treat me like a child!" I shouted again and stormed out of the room and into my bedroom. After a few minutes, I silently open the window and sneak out. My bare feet hit the cool ground outside the manor. I smile and levitate of the ground. I fly out into the night sky, my silvery white braids flapping behind me.

Flying over a town, I grinned even wider. I might just stay here, I thought. Landing in the middle of the of the town, people walked by, not even looking at her. Well, that's because they can't see or hear her.

-Rise of the Guardians-

Jack Frost flew through the air, spreading snow and frost everywhere. He landed at the park, where met up with some of the other kids... the ones that could see him.

"Jack! Your here!" Jamie Bennett said, running over and hugging Jack around the middle. Jack laughed and ruffled his hair. "Good to see you again, Jamie," he said.

Six other kids see Jack and hurry over to greet him. They all were wearing their winter clothes, some with snow on them from snowball fights. They invited Jack over for another round they were about to start. And just like that, Jack hit first and the battle began.

Snow flew in every which way, hitting everyone except Jack, who was a pro at this. Suddenly, a snowball hit Jamie in the back of the head. He turned to face his attacker, but saw no one. Only a large oak tree. He goes around the tree, then looks up. He did this several times, but could not find the thrower.

"What's up, Jamie?" asked Jack. He walks over and places his free hand on Jamie's shoulder, the other still holding his staff.

"A snowball hit me in the back of the head and when I turn around, there's no one there. And when I looked around, still there is no one," Jamie said, pointing at the tree where the snowball was thrown. The other kids come over to see what's going on. One of them looks up into the branches just as something big shifted. "Look, in the branches! Something moved! And it was big, too." she announced. Everyone looked up. Jack let go of Jamie and floated up into the branches. He doesn't find anything.

"What do you see, Jack?" Jamie asked. Jack looked down and shrugged. "I don't see anyth-" he began, before a snowball hit him in the face.

The kids gasped. Someone is in the tree, but they can't who it is. Then, the kids giggled. "Okay, who's up here? Show yourself!" Jack said, grasping his staff. He saw something move and dart out of the tree. Jack followed and saw a girl standing near the edge of the forest. He landed and slowly began to walk toward the girl, the group of kids and Jamie following behind him. She stood in the shadows of the woods, so it was hard to make out her features. She had her hands behind her back and was leaning against a tree. She was smiling.

"Who are you?" Jack asked. The girl tilted her head to one side.

"You can see me?" she asked. Her voice was soft and gentle, like a melody.

"Yes." Jack was confused.

"And they can see me, too?"

The kids nodded. The girl took a step forward and into the light. She had white hair, like glowing platinum, that nearly touched the ground, tied into two braids. She had gray eyes and pale skin that seemed to slightly sparkle in the light like crystals. She wore a long sleeved white shirt, white pants under a white mini-skirt and barefoot. Around her neck, was a clear crystal.

"I'll tell you who I am... if you can catch me, Jack Frost," she said. Before Jack could respond, the girl levitated off the ground and took off like a rocket into the woods.

"Hey!" Jack shouted and took off after her. The kids stood there, waiting for Jack to return.

The girl dart every which way, trying to throw Jack off course. But Jack was at her heels instantly. The girl turn over so she was flying backwards.

"You need to do better than that to catch a spirit like me, Jack!" she called.

"How do you know my name?" Jack asked. He continued to chase her, surprised that even though she wasn't looking, she didn't hit a single tree. Or so he thought.

The girl flipped back over at the wrong time. She hit a low branch with her leg, haven't gotten any time to fly over, and hit the ground, doing several flips before landing on her back. Jack flew down and landed next to the girl.

"Are you okay?" he asked, extending a hand to help her up. The girl nodded and allowed Jack to pull her up. She dusted off the snow and stared at Jack.

"I'm fine, just my leg needs some healing," she said, look down at her leg. Jack looked down, too, as she lift up her pant leg a little, reveling a slightly bleeding bruise that went from her knee to mid calf.

"Yikes, that's gotta hurt," Jack said. The girl shook her head. "It only hurts for about a five minutes, then it disappearing. My wounds heal fast," she explain, pulling her pant leg down again.

"So, may I ask what your name is?" Jack asked. He leaned on his staff as he waited for the young spirit- She has to be a spirit, Jack thought- to answer.

Finally, the girl cleared her throat and smiled, gray eyes gleaming with life. What she said next nearly caused Jack's staff to come out from under him and make Jack fall on his bottom.

"I am Platinum, the Spirit of Joy."