Hey everyone :) Just a new story. I've fallen in love with the whole Jack Frost x Elsa thing, so I wanted to do a story :D

Chapter One

Sisters Apart

"Momma, Papa!" Elsa called, her young voice trembling as it echoed around the cavernous ballroom.

Her little sister Anna was still as she lay in her arms. Her hair was now streaked with pale blonde and she seemed to be only just breathing. Elsa had never seen her sister be so quiet and it scared her.

"It's okay, Anna, I got you." She whispered.

The doors to the ballroom burst open and her parents rushed in. They had often found Anna and Elsa playing in the ballroom. They had found them sledding and having snowball fights, but they had never seen it covered in this much ice. They had been in the King's study, which was next door to the ballroom, listening to their daughters play in the snow created by Elsa. Their hearts had nearly stopped when the giggles of their daughters had changed to Elsa calling for them, fear so obvious in her voice.

"Elsa, what have you done? This is getting out of hand." The King said his voice grave and worried.

Tears leaked down Elsa's pale cheeks. "It was an accident! I'm sorry Anna."

The Queen scooped her youngest into her arms and frowned. "She's as cold as ice."

Her husband examined the blonde in Anna's hair. "I know where we have to go."

Elsa hovered by her mother, looking at her sister's lifeless body. She followed both of her parents into her father's study and tried to ignore the ice crystallising from under her feet and climbing the stone walls. Her father grabbed a book from the shelf and checked a map that fluttered to the ground from the book's pages.

"We must hurry." He told his wife, ushering her and Elsa out of the door.

"Thank goodness the servants are in bed." The Queen whispered as they crossed the courtyard and entered the stables.

Elsa stared with wide eyes at the horses in the stalls. The horses had always shied away from her as though they sensed her power and their rearing scared her. She whimpered as she was lifted by her father onto his horse.

The stallion nickered and shifted uneasily, not happy with the young girl seated on his back. A few soothing words from the King settled the horse and he stood still once more. The King took Anna from his wife, and handed her back after she was settled in the saddle. They shared a brief, worried and meaningful look before he returned to his horse. He swiftly mounted him behind Elsa and urged him forward.

The King and Queen rode through the kingdom unaware of the ice trail being left behind by Elsa's magic. Elsa trembled and fought not to cry. She huddled into her father and he sent her a warm smile that failed to calm her.

She hadn't managed to look after Anna and protect her, like she had once promised when Anna was small.

Elsa stood on her tip toes and peered into her baby sister's crib. The young princess had been crying and it seemed as though the only one that could calm her was her sister. Anna saw her and her tears immediately dried. The baby princess giggled and stretched her chubby arms towards Elsa.

"What do you want, Anna?" Elsa smiled. "Do you want this?"

Elsa waved her hand and magical ice crystals began to swirl gracefully around the baby's head.

"Elsa! What are you doing?" The Queen cried, entering the children's room.

"Anna likes my magic." Elsa explained. "I won't hurt her."

The Queen was torn between letting her four year old continue to entertain her baby, or stopping the use of magic right away in case she accidentally hurt Anna. In the end, she decided to let her continue. After all, what could it hurt?

"Alright, but don't let your father see."

She sat herself in the rocking chair by the window and continued the sewing she had been doing during her pregnancy and shortly after Anna's birth.

Elsa smiled at her sister. "I will never hurt you, Anna. I will protect you and look after you. I promise."

Elsa whimpered softly and rubbed at her eyes, trying to get rid of the burning sensation that always accompanied tears.

"We're here." The King whispered.

Elsa stared around the stony gorge. Round rocks surrounded them and lent a mystical feel to the area. She almost didn't want to get off the horse, but her father lifted her off and tied both horses to a tree.

He ushered his family forward to the semi-circle formed by the natural ridges in the stone. They stood in the middle, huddled close together.

"Help, my daughter." The King called.

Elsa gasped as the stones began to roll and move towards them. They uncurled to reveal sweet faced trolls looking at them. Moss was draped around their shoulders like capes and some of them had hair and necklaces. A hushed whisper ran through them and Elsa hid her face in her mother's skirt.

An older troll came forward. "Your majesty."

The King bent down and gently pushed Elsa forward. She curiously studied the troll and found she rather liked his kind face. He took one of her hands in his own and she marvelled at how smooth the stone was.

"Born with the powers or cursed?" The troll asked.

"Born. And they're getting stronger." The King replied.

The troll nodded and dropped Elsa's hand. He gestured for the Queen to kneel down so he could examine Anna. He placed his hand over the new blonde streak and closed his eyes, sensing the magic within her.

"You're lucky it wasn't her heart. The heart cannot be changed so easily, but the head can be persuaded." He told them.

The King nodded. "Do what you must."

"I recommend removing all magic." The troll said, using his magic change Anna's memories of Elsa's magic.

It was all a blur for Elsa. She numbly followed her parents back to their horses and the ride back barely registered. They placed Anna back into her bed and made sure she was comfortable.

"We have to move you now." The King told Elsa.

Elsa blinked up at her father with sad eyes. "Do I really have to?"

The Queen stroked some of Elsa's hair out of her eyes. "Your powers are growing, and Anna can't know of them. It's for the best."

Elsa sniffled. "But I don't want to."

"You have to." The King told her firmly.

"You can choose which room you want." The Queen smiled gently.

Elsa walked down the corridor from her bedroom and examined each room along the long passage. She finally decided on one with a large window that overlooked the castle gardens and the sea beyond that.

"Good choice." The Queen praised her.

"What now?" Elsa whispered.

"We move your things. When Anna wakes, you will be gone."

Elsa nodded at her father's words. She stood with the Queen and watched as the servants moved her things from her old room to her new room. She felt a pang of sadness hit her as she realised she would never be as close to Anna ever again.

The next morning, Anna woke in her comfy bed. She sat up with a grin, hoping to see her sister sitting up in bed opposite her. But Elsa wasn't there.

She quickly got dressed and ran out of the bedroom. She ran down the corridor and stopped when she saw Elsa. She was entering a bedroom that, as far as she knew, had never been used before.

Elsa glanced back over her shoulder at her sister, her face sad, and entered the bedroom. Anna's face fell and she frowned, not quite understanding what was going on.

Elsa slumped against her door, slid down it and began to cry. She would never enjoy her sister's smile again, nor would she hear her melodic giggle.

Please Read and Review. Next Chapter: Jack appears :)