I saw an interesting story idea about Elsa and Anna being separated as children with Elsa living away from Arendelle and being the feared 'Snow Queen' while Anna continues to live in the castle and then one day, without knowing they are sisters, plans to kill Elsa. I decided to try my hand and writing it out, so I hope you like it.

Note: Anna is a little darker and less carefree and naïve than she is in the movie.

Disclaimer: Unfortunately, I do not own the movie Frozen, so these characters are not mine.

The situation that Anna grew up in was never exactly normal, even past the fact that she was a princess. Anna grew up in Arendelle, which was a wonderful kingdom, but for as long as she could remember it was trapped in an eternal winter. She had been a sheltered child, yes, but she still heard the rumors and gossip between servants and the villagers she was able to overhear if she opened the right window at the right time. And from what she managed to gather, the snow and ice that plagued her kingdom was caused by a sorceress with magical ice powers living high up in the North Mountain.

Anna knew that this unusual climate caused her parents much stress. Her father would stare out at the snow-covered village near their castle with sad eyes, and he rarely permitted Anna to leave the safety of the front gates. Her mother always seemed to be in a state of depression, and she hid away in her bedroom with tears in her eyes every time a blizzard hit Arendelle.

These were not the ideal conditions for Anna. She had to spend her days trying to entertain herself, which worked for a while due to her large imagination and the huge playground of a castle she had to explore. But after a while, the sadness permeating the castle subdued her to the point that it seemed too stifling for her to even breath right anymore.

Anna was eleven years old the first time she snuck out. It had been a little harder than she thought it would be and took a little craftiness, but she managed to climb out of a high window and slide carefully down the rooftops while avoiding the guards' gazes. She had landed right beyond a side wall of the stone barrier protecting the castle.

It was on that day that Anna first met Kristoff.

Kristoff had been twelve at the time, and Anna met him and his young reindeer friend, Sven, in the market square. Kristoff had been on break from helping the men who kept the fjord free from ice by cutting it out and freeing up the water. He had been looking for a new hat since his was little more than a dirty rag from overuse, but he hadn't had enough money to buy anything substantial. Anna saw his predicament and bought one for him – a warm, dark winter hat that Kristoff took after thanking Anna profusely. It didn't take long for the two to become friends; both were lonely children who needed a friend. For the first time in as long as she could remember, Anna had been really, truly happy. It was with great reluctance that she parted from Kristoff and went home that night, sneaking around the back of the castle, climbing through a small space under the stone wall, and quietly entering the back door that led to the kitchen.

Four years passed by, and Anna still lived in the depressing atmosphere of the castle, but she still had Kristoff and Sven. She could be found with them nearly every day, and she even started exiting the castle through the front gate – evidently, her parents no longer noticed or cared about her whereabouts, wrapped up in their grief as they were. As happy as Anna was about her new freedom, she was still saddened by the fact that her parents began to care so little.

Everything changed right after Anna's sixteenth birthday. Her parents, for the first time since her birth, were leaving the castle. The storms outside had been getting worse, and what little goods Arendelle managed to gather were not enough for the starving people, even with the trades they held with other kingdoms. The king and queen needed to send their request for help, but this time, instead of a messenger, they were going themselves. Weselton was their destination, and it was not very far. Anna's parents, tired of living in the oppressive and stifling castle and with a large request that was better done in person, decided to go on a two-week-long trip.

It stung Anna that her parents didn't want to take her along with them. But she kept up her forced smile as she held her tears in and hugged the king and queen goodbye. "See you in two weeks," she said as their arms wrapped around her.

Anna never could have imagined what happened over the next two weeks.

Word came three days later that the ship carrying her parents had capsized before it could reach Weselton. It had been trapped in huge waves caused by a strong storm that had hit Arendelle and area around it – one of the worst winter storms ever to hit. Anna was trapped in mental paralysis. She just couldn't comprehend what had happened, even as she sat through the funeral and unnoticed tears ran down her cheeks and Kristoff sat next to her, wrapping an arm around her that kept her from completely going catatonic.

A week later, after her royal advisor mentioned to her that she would become queen after her eighteenth birthday, Anna simply became angry.

She punched pillows and screamed and cried and paced until her feet had blisters. The grief had finally hit her, and she was mad at her parents for not being there for her nearly enough, for paying more attention to the weather than to their own daughter, for leaving her to run a kingdom when she was still so young, for going on that stupid trip to Weselton and getting caught in that stupid storm… That storm…

And just like that, Anna found the new target of her rage. All of this, every miserable day Anna went through in her childhood, was all caused by the Snow Queen. The icy sorceress who lived in the mountains caused the winter that depressed her parents and diverted their attention; she was the one who sent the storm that killed her parents. Anna was furious, and no one was able to calm her rage, not even Kristoff.

No one was surprised when Anna announced her plan to kill the Snow Queen. Some of the servants tried to dissuade her.

"Princess Anna, it's far too dangerous!" Gerda exclaimed.

"And who would take over Arendelle if anything happened to you? You're the sole heir!" Kai reasoned.

Anna raised a hand to stop the objections. "I am avenging my parents, and that is the last I'll say of it," she said quietly, and that was enough to stop the attempts to hold her back.

Anna turned to Kristoff who had been watching her from the side of the room. She knew what he was thinking – Anna was too stubborn to let anyone change her mind, so there was no point in trying. "Will you come with me?" she asked him.

"Of course I will," he replied with a half-grin on his face. He knew it was dangerous, but at least he would be there with his best friend and able to protect her if she ran into any trouble.

"Kristoff and I will gather the supplies we need tonight, and we will leave at dawn," Anna told the staff. This time, no one tried to change her mind, and they watched as she exited swiftly from the castle.

Anna ended up being pretty serious and very Elsa-like, but by the end of the story she'll be much more like the movie Anna we know and love.

Thanks for reading, and I'll update as quickly as I can!