In the past I had many ideas for possible Frozen Fanfiction and this reminded me of one of them. It had to do with fairies and the sisters and the power of sisterhood (even if not by blood). It like many of them was basically just a bunch of ideas and scenes ideas in my head with nothing fully developed however.



Basically if starts with Elsa wondering why she has magic powers compared to everybody else and begins looking into possible the family secrets and the parents journals, legends and history of Magic, tales, and Norwegian folk lore for possible clues. At some point Elsa starts to read up about Fairies and changelings. About how Fairies for unknown or various reasons swapped, replaced, or gave babies to unknown parents. Finding a clue in a hidden journal noting of activity of Fairies sightings near Arendelle during the Queen's pregnancy starts to lead Elsa into thinking that the reason she has powers is that she might be a really a unknown changeling swapped at birth. Horrified to think that she is a fake person, queen and worse a feeling like a fake sister Else grows in despair but Anna (being who she is) tells her that it doesn't matter to her and she is her sister and real.



Meanwhile a person who hates all forms of magic beings and has hunted magical creatures decides to hunt Elsa. During a battle with the two sisters with Elsa defending herself and Anna protecting Elsa the hunter reveals a stone that would unlock and bring out Elsa's true fairy form and temporary weaken her from the transformation allowing him to kill her. Using the stone Elsa feels nothing and believes it to be a sham or broken magic item. But to Elsa's and even the hunter's shock shock however laying on the grown knock out Anna grows Fairy wings and pointed ear tips.



Elsa escapes with the changed and unconscious Anna back to the castle wrapping Anna with a blanket to hide Anna's new features as she made her way to their bedroom. Putting Anna in her bed Elsa after considering herself with getting home and Anna to safety then has to reevaluated everything in her head but most of all how to process this new information and emotional shock about Anna's true species and being not sisters. However Anna moans and cries for Elsa as she sleeps snaps Elsa out of her negative thoughts of lost sisterhood and moves to Anna worried for her. Elsa berates herself for such thinking reminding herself how Anna had always been by her side and her door before and would support her and comfort her in her times of need. Elsa knows that now it will be Anna that will need Elsa's support once she awakens. That a sister isn't just somebody who you are linked by blood but deeper in the heart.



Later Elsa learns from a old doctor that when Elsa was born her magic damaged the womb of their Mother making it impossible to bear future children. Yet as far as the doctor knew when Anna was born he though the baby was a stillborn but somehow the temporary nurse was able to wake the baby up. The "nurse" was really a fairy assigned by her kingdom to swapped the passed on baby with the secret baby fairy who was named Anna and raised by the royal family.



Anna was able to survive her head and frozen heart magical conditions of the past as fairies having a great link to the magical forces also have strong magical defenses allowing Anna the time necessary to remove/defrost the spells (normal humans would of died instantly).



The reasons for the swap I have formed a couple in my head but never solidified just one idea.



One scene I was thinking in my head is that Elsa and Kristoff are talking and Elsa is worried and needs Kristoff's advice. Elsa tells Kristoff about how many people whom she has met as Queen who appears perfectly calm but deep down is worried and guarded due to her magic thus in their eyes she can see the uncomfortable distance and feelings of alienation and estrangement for being different. Elsa had never seen those eyes on Anna always welcoming and assuring without any fear or distance. Until that morning when she saw Anna looking at a mirror as she comb her hair. Despite her claims when asked Anna deep inside still has blues about not being human and questions her identity.



Ever since Anna's true form had been brought out Anna begins to slowly discover her species magical traits now unlocked to her.



I wanted to cover and handle topics found in TVTropes website of: "Happy Adopted, Interspecies Romance (for Kristoff and Anna technically), Wonder Child, Muggle Foster Parents,

What Measure Is a Humanoid?, Tomato in the Mirror, Rage Against the Reflection, Loss of Identity, The Mirror Shows Your True Self, What Have I Become?,



