So I haven't seen the movie yet, but I really really really want to. I've seen so many clips and trailers and music videos on YouTube and I read the fanfictions and I got totally inspired. So this is going to be JackxOC. If you don't like don't read. Oh and this takes place 1 year after the movie.

Disclaimer: I do not own any ROTG stuff. Just the OC.

Jack's POV

The moon above me was full. Fuller than I had ever seen it in my entire life. All 317 years of life. I sat by the small pond where I died and stared up at the moon. What was Man in the Moon up to? The moon seemed to get bigger and closer, then Man in the Moon was standing in front of me. Never had I ever heard of this happening.

"Jack, I can see you are shocked." Understatement. Man in the Moon continued to speak. "I watched you battle Pitch. You were very good, my boy. But the danger has not passed." I got my wits about me fast enough to ask,

"What do you mean?" The Man in the Moon sighed.

"It seems Pitch has been up to old tricks again. He was trying to use a reincarnation to take over again, but..." Anxiety ran through my veins.

"But?"

"The reincarnation has escaped from Pitch's hold and now has its own agenda. I'm here to warn you that you five won't be enough. You will need help from another." The Man in the Moon started to fade a bit.

"Wait, who will we need?" I cried out. Before he disappeared completely, he murmured,

" A harmony." Then, I was alone. Letting out a sigh of aggravation, I kicked a tree. A harmony? What was that? I hoped North knew cause I sure as heck didn't. The air around me lifted me upward into the inky sky. I skimmed over the treetops, looking down every once in awhile. The snow was bright under the moon, making it little magical looking. It was like it was out of a story book or something. The silvery night enchanted me a bit. For a second, I felt the urge to frolic in the snowbanks like I once did. But that was before I heard an ungodly shriek and almost fell out of the sky.

The cry came from nearby. North would have to wait. Plunging toward the ground, I pulled up and weaved through the trees in search of the source of the ear splitting cry. The sounds of a scuffle lead me to where a girl and a red demon of some sorts were going at it. The demon knocked the girl off her feet and about to pounce when I heard a song. The girl was singing.

Trust in me

Just in me

Close your eyes

And trust in me

You can sleep

Safe and Sound

Knowing I

am around

Slip into silent slumber

Sail on a silver mist

Slowly and surely your senses will seize to resist

Trust in me

Just in me

Close your eyes

And trust in me

The demon swayed in time to the music and finally fell to the ground asleep. I felt a little sleepy myself. This girl must be a spirit of some sorts. The girl stood up and looked right at me.

"I know you're there, so you might as well come out." Her voice shook. I gripped my staff tightly and stepped from behind the tree. As I neared her, I could see her for what she truly was. Beautiful. Her hair was dark ebony, and her skin reminded me of porcelain. But it was her eyes that got me. They were purple. Dark and swirling with emotion. She was wearing a pale blue skirt that went to her knees and a black sweater. Her white tights were wet from the snow, and she was wearing black converse. In her hands were two throwing knives, previously in the snow.

"I'm Jack Frost. I won't hurt you, I promise." She blinked at me hard. Her breath came out in small gasps. Fear passed through her violet eyes. Then they turned hazy. I was her side before she could hit the ground. Up close, I could tell she is as skinny as me. Plus cuts and scrapes dotted her face. Around her neck, I noticed a silver music note necklace. North will want to know about this, I thought. Holding the mystery girl bridal style, I flew into the air.

Unknown POV

I watched the white haired boy fly away with my girl. She's mine! My demon was supposed to weaken her so I could take her back to my house. She would have been my slave and entertainer and wife. I'll get her back. I swear it. Jack Frost, you better be ready because I'm not losing her without a fight! I'll come for you my darling, whether you want me to or not.