I don't own Frozen and I never will. All I own is my phone and my screwy brain. Enjoy the story!

Soft-hued streaks become visible in the sky as the daylight wanes. My stomach twists as I fully realise just how close tomorrow is.
Tomorrow. I knead my gloved hands together, agitated, and smudges of frost appear on the walls, born of my helpless distress.
"Stop." I whisper desperately, willing myself to keep a vague trace of control. Whatever happens tomorrow, I must never, not under any circumstances, reveal my curse to anybody. Least of all my sister.
I let out a breath I didn't know I was holding. My sister, though I've barely seen her in thirteen long lonely years, is all I have left. The only person for whom I would give my life, without hesitation. It was for Anna's protection that I have hid myself away and endeavoured in vain to control my...*ability* for so long. Although Anna can't remember, I *can* remember, clear as day. The incident has permanently etched itself deep into my memory. Despite the fact that it was a complete accident, I still harmed Anna with my abnormality when we were young, young and still inseparable. Anna recovered ("Thank God." I mumble unconsciously.) but I will never forgive myself. If I hurt her again, however unintentionally, I wouldn't be able to live with myself.
Tomorrow, however...I can see her again, the sister I have always held so dear, who I still miss deeply. An involuntary smile begins to emerge on my face, but a horrifying thought cuts it short. What if Anna *hates* me for deserting her when she needed me most? I wouldn't blame her; I hate myself. I've striven to shield Anna, but at the price of both of our happiness. I feel my mouth trembling as a tear stabs at my eye-and some more ice crawls along the walls of the room I know too well. I take several deep, shaky breaths, but it's futile, and resentment pours out of me. "I despise you! Get out of me!" I shout in despair and frustration. "I'm so, so sick of having this-this defect! Just stop it!" My shaking legs buckle and I sink to the floor. "Stop." I whisper again, resting my head on my upturned knees. A bitter sense of shame, self-loathing and fear clutches my insides.
"I'm not ready." I mutter softly, speaking somewhat faster than usual. "I can't be the queen. I'll disappoint everybody. I can't do this." A tear slips down my cheek, and once I start, I can't stop. Leaning against the cold wall, I weep silently for quite some time, disgusted with my curse, with myself.
*You* can *do it. I have every confidence in you.* Absolutely shocked, I hastily raise my head. "Papa?" I breathe, almost certain that I heard his deep whisper. After a second or two, I just shake my head hopelessly. Mama and Papa, who had tried so hard to support and console me, have been dead for three years. Another tear, this one of sadness.
"I can do this. I *have* to do this." I say in hushed tones, trying to convince myself. "If for nothing else, then for Mama and Papa...and Anna."
Anna. I bite my lip hard, wishing there was some way I could express just how much she matters to me.
Despondency creeping over me again, I cast my eye over the room, and pause on a small, very precious pile of letters. Anna, the sweet thing, slipped notes under the closed door when they were little, often beseeching me to go out and play. The topmost and most recent one, however, was written the day after Mama and Papa's funeral...which I didn't even have the courage to attend. Another thing I will never forgive myself for.
The ink on that letter had run where both mine and Anna's tears had fallen on it, but it's still legible.

Dear Elsa, I just don't know what to do or who to turn to anymore. I need you more than ever, so please come out. Even if it's just once, for only ten minutes. I'm begging you.
The castle seems much more huge and bare without Mama and Papa. I just feel so lonely and hopeless, and I think you do too. I can't do this by myself, Elsa, I never could. Please, please don't hide away this time. I need somebody to help ease the grief, but nobody can comfort me like you would. Elsa,* why?* Is this my fault? Am I such an idiotic and terrible person that I can just watch as my parents are taken and my sister shuts me out? I need to know. Tell me, please.
I'm sorry if I irritate you with all the knocking. I just wanted to let you know, I still miss you, and I need you to help me through this. There are so many days ahead of us. Tell me, Elsa, where do we go from here? With thirteen years' worth of hugs from Anna P.S. I still want to build a snowman.

When I first read the letter, I clutched it to my chest, sobbing uncontrollably. My loneliness and sorrow was too much to bear, and I cried for hours, longing to be able to tell my sister how we would get through it, wishing more than anything that I could unlock my door and hug Anna and cry until the emotional agony went away. As I sobbed, ice encrusted the floor, snow drifted down from the ceiling, an arctic gale blew through the room-but I barely even noticed. I was past caring.
I remember this all too vividly, and with a wrench of heartache. It isn't fair. It was never fair. All I have of my treasured sister are memories, letters and a constant feeling of regret...
Letters. Suddenly it comes to me. I can write Anna a letter. Though I probably won't ever be able (or, indeed, brave enough) to send it, writing it might dull the gnawing guilt and misery in my heart.
I swiftly arise from the floor. My dress is wet from the partially melted ice, but I can't say I care at the moment. After ensuring my traitorous hands are well covered by the gloves, I sat at my desk and slowly raise my quill. What to say to a sister I haven't spoken to for most of my life?
*Speak from the heart, Elsa.*
And gradually, cautiously, I begin to write.

Not too happy with the end lines, but I hope you liked it. Please review! Next chapter along very soon. Hugs!