In the middle of the night

"Elsa! " a young red head whispers to a sleeping whitehaired girl
"Psst... Elsa! wake up!" the red head says a little louder.
the red head then jumps on the bed and yells " Wake up! wake up! wake up!"
"Go back to bed Anna."
"But I just can't ,the sky's awake so I'm awake, so we have to play.
"Elsa then shoves Anna off her "go play by yourself!"
Anna gets a gleam in her eye jumps up on the bed again and whispers
" Do you want to build a snowman?" Elsa smiles and the two girls sneak out of the room.

"come on, come on, come on, do the magic, do the magic." Anna begs
Elsa starts to gather the magic in her hands and looks to Anna " Ready?" " uh ha"
Elsa then releases the magic and it starts to snow "This is amazing!" Anna yells
The two girls play for hours making snowmen and riding down slopes made of snow
when Anna gets an idea and jumps into the air "catch me"
Elsa quickly catches her with a pile of snow but Anna keeps jumping faster and faster
"Wait slow down!" Elsa cries and slips but Anna keeps jumping
"Anna!" Elsa yells trying to catch her she throws out more magic but it hits Anna in the head
"Anna" Elsa runs over to her sister and cries "momma! poppa!"
due to her turmoil she losses control of her powers and the room starts to freeze
someone starts banging on the door "
your ok Anna I've got you" Elsa mumbles hugging her sister to her chest.
when her father finally breaks through the door
"Elsa what have you done. this is getting out of hand."
"it was an accident!" Her mother runs right to Anna and realizes "she's ice cold."
The father says "I know where we have to go" then runs to the library to get a map while Elsa
and her mother get the horses ready. When the father returns the four ride out into the woods.

"The four ride until they reach a clearing where the father gets of his horse and yells
"Please help my daughter!"
in response dozens of stones start to roll into the clearing and reveal themselves to be trolls
"its the king!" they whisper when an important looking troll walks forward and asks
"Your majesty born with the powers or cursed?"
The king is shocked that he knows what's going on already and takes a second to answer
"born and there getting stronger.
"The troll nods then checks on Anna "Your lucky it wasn't the heart.
The heart is not so easily changed but the head can be persuaded."
"do what you must" the king tells the troll.
the troll pulls something out of Anna's head going through Anna's memories
"I recommend we remove all magic even memories of magic to be safe.
but don't worry I leave the fun."
then places the modified memories back into Anna saying "she'll be ok"
Elsa happy that her sister will be ok asks "But she wont remember I have powers?"
The kings assures his daughter "its for the best."
The wise Troll not finished helping the family gives Elsa some advice
"listen to me Elsa your powers will only grow it has great beauty, but also great danger.
You must learn to control it, fear will be your enemy."
as he warns the princess he shows her visions of what might happen scaring Elsa
The King grabs his Daughter
"She will learn how to control it until then we lock the gates, reduce the staff, keep her contact with the outside world to a minimum.
keep her powers a secret from everyone including Anna and her brother."
The next morning
A young infant wakes up and sees his sister outside his other sisters door when from behind the door he hears Elsa's voice "go away Anna"
"whads wong wit Elda" the boy asks his Sister. Anna smiles down at her little brother and says "I don't know but how about we go build a snowman." and the two run out to play.

"The king and queen watch on from a distance when the queen says "you know with Elsa's powers he will have to be king." The king sighs "I know but Anna just had one big change lets give it a few years. Besides Stephon is only two."

" 10 Years pass and the family grows apart Elsa stay's in her room hiding her powers. while the young Stephon receives training and teaching from his parents on how to be king with him learning how to use a sword and politics. but Anna is left alone.

"the 15 year old Anna runs past Elsa's room only stopping for a second to look at the door then runs to her parents and little Brother
"I'll see you all in two weeks" and gives them a big hug.
Stephon stays behind with Anna when there parents talk to Elsa in the other room
"do you have to go " Anna asks her little brother.
Stephon sighs "yes Anna mother and father want me to lead this kingdom some day and while I think Elsa should lead they keep saying she can't. This trip is supposed to meet some of our distant trade partners and establish relations with them."
Anna just looks at her little brother sadly and asks. "And what happened to my little brother that would build snowmen with me."
Stephon just smiles remembering the memories of when he was little
"when we come back I'll try and get father to give me a day off and you me and Elsa can go have some fun together"
The king yells from the next room " Stephon the boat is leaving in 10 minutes come on!"
Stephon gives Anna one last hug then runs to his father running right past Elsa without even seeing her.

Now quick note This is my first story and I'm sure there will be some errors. I will work on it and proofread every chapter before I post to minimize them.
now for info on the story I have Elsa at 21 with her coronation and Anna at 18. subtract the 3 year time skip has them at 18 and 15 before the trip I made Stephon 3 years younger then Anna
as for the baby talk he was only 2 at the time not many 2 year olds can talk perfectly and I tried to show that. I will try to make new chapters at least once a week
Review and tell me what you think I will try and read over everything and fix what I can asap.