Dear Anna,
Yes, I want to build a snowman. I still consider you my "best buddy". You were always there for me. But if we play anymore, you might get hurt. That is the last thing that I want. I'm trying to hide it, to not let it snow.
I'm sorry you're lonely. I am too. You at least have the entire castle to explore. All I have is my room and my power. I couldn't even bear to be around Mom and Dad. I am so afraid.
I know it's just us now, now that they're gone. But I can't let you in. I can't hurt you again! I must stay here where you are safe from me.
Oh, if only you could understand.
I'm sorry, dear, dear Anna.
Your sister,
Elsa