Edited: 10-8-15
DISCLAIMERS: I do not own Frozen or Harry Potter, nor do I claim any rights to either.
Author Notes: As stated at the top, this story has been edited since its original posting. This was necessary in order to fill in a few plot gaps, but the majority of the story remains the same. I hope you enjoy, and if you want you can feel free to leave reviews, PM me, or simply like/fav. That being said, this story will contain eventual Elsanna (icest) and plenty of angst along the way. I'll come back eventually and edit this AN to include what chapter/s the Elsanna will take place for those who have a problem with the shipping of sisters.
Crack!
If it were any normal neighborhood, the loud sound would have been cause for concern. As it was, this particular dwelling belonged to many wizards and witches, so the arrival of the wizened old man went nearly unnoticed but for a few glances between curtains. If anyone thought it strange to see an old man with heavy robes of varying colors and a long white beard gracing his aged face which cradled half-moon spectacles, there wasn't any hint of it.
The old wizard made his way quickly to one house in particular. More than a house, really, it was nearly a castle with its majestic towering structures spread far across the grounds. The gates to the main drive opened with a wave of the older man's hand and he quickly made his way up to the large double doors that marked the entrance to the mansion. Even at a distance he could feel the strange magic from within, not an unpleasant feeling but still it gave him pause as he reached the door. It was a new sensation even to him, this curious power emanating from within the house and that in and of itself was worrisome.
His knuckles wrapped on the door which was immediately opened to reveal a tall man with reddish-brown hair and a matching thin mustache beneath a large bridge of a nose. "Dumbledore, thank heavens you came. We didn't know who else to call." The man's usual easy smile was gone, a frown creasing his eyes.
Dumbledore waved his hand in an easy gesture. "It is nothing, my dear friend. Show me to the girls."
The man paused, glancing at the older man's blackened hand. "Are you—"
Dumbledore shook his head to cut the man off. "It is nothing to bother yourself about. Please allow that even I can make mistakes," he smiled wryly and again gestured for the man to proceed. How could he indeed tell these loyal and trusting people that his own time in this world was severely limited, due in one big part to his own folly?
Agdar Arendelle and his wife, Idun, had been members of The Order of the Phoenix for several years now and were some of his most loyal friends. So naturally he'd felt compelled to come when the man's urgent letter had come fluttering across his desk at Hogwarts.
The normally regal man nodded and gestured for Dumbledore to follow him inside. "This is beyond anything we were prepared for," he muttered fervently. "We know many underage wizards and witches show signs of magical capabilities early in life, but this…" he gestured helplessly.
It was a short walk from the small foyer and into the main lobby/greeting area, and even Dumbledore had to stop and stare in wonder at the sight, agreeing with Agdar's desperate statement.
The room itself was a large two-story open room with twin staircases half circling their way up from either side of the bottom floor to meet at the second floor balcony. He had been here quite a few times over the years and he rather enjoyed the timeless look of the polished sets of armor lining the room, and the porcelain statues and detailed artwork that framed the walls.
Yet this time was different, as everything in the room was coated in a thick layer of snow. Piles of the white fluff were spread interspersed throughout the bottom floor area, and there at the center of it all were the twins, Elsa and Anna.
The platinum-blonde and fiery red hair caught his attention easily as he idled forward, the children's carefree laughter bringing a soft smile to his face as he took in their delighted play. That was true magic, he knew, the magic of love and happiness.
"Headmaster, what do you think?" Idun had approached from his left, her hand sliding into her husbands as they worriedly took in their daughters.
Dumbledore nodded slowly, making a small hmm as he bent to run his fingers through one of the piles of snow. It was cold to the touch but didn't immediately melt. Curious, he thought. "I have never observed such a sight as this before," he said aloud. "How old are the girls, now?"
Idun spoke first, "They just turned eight last week. We wanted badly to hold a party but with the rise of the Dark Lord…" her words faded as the weight of their battles sat heavily in the air. Voldemort had returned two years previously, as Dumbledore had anticipated, but the wave of chaos and destruction that followed was still a tumultuous and unpredictable thing even for him.
He stood to his full height. "If you please, I would like to speak to the girls."
Agdar nodded, moving forward through the snow-filled lobby. "Elsa," he called. The girl in question didn't seem to hear him, twirling and flicking her fingers around them to create ever larger piles of snow. Her sister, Anna, was jumping from one pile to the next and laughing hysterically, the pure sound ringing out across the otherwise quiet room.
It was just then the blonde girl seemed to lose her footing, slipping backwards and crying out her sister's name. Dumbledore reacted immediately, his wand flashing out to erect a barrier between Anna and the wildly-flung magic from Elsa's fingers.
To his astonished disbelief, her magic speared straight through his barrier as if it were tissue, striking the redheaded girl across the face, sending her tumbling down across the soft expanse of snow beneath her. He knew, in his vast knowledge of magic, that his spellwork should have been more than enough to stop another's magic with ease.
"Anna!" cried the young blonde child. The three adults ran forward to find the redhead cradled in her sisters small arms. Slowly, a white streak seemed to steal the color from Anna's hair, and even before he touched her he could feel the cold radiating from the young child's body.
"She's ice cold," Agdar said as he took the girl into his arms, confirming the old wizards fear.
"Dumbledore," Idun said frantically, "Is there anything you can do?"
He nodded, leaning down to the snow and raising his wand. "I have to first see what has been done, and then I will know what can be undone." He aimed his wand at the young redhead's forehead and closed his eyes, whispering, "Legilimens." He didn't need to speak the incantation aloud or use his wand, but for the sake of the Arendelles, he wanted them to see his actions in order to offer them whatever comfort he could.
Suddenly he was there in the girl's mind, his thoughts reaching across her memories and her personality. There was light and purity in the young girl's mind, shining brighter than the brightest star, yet there was coldness in her that seemed to slowly be spreading throughout. It appeared to steal that light from her memories and from her thoughts as it crept through her, coating everything and taking every bit of warmth from her life. And then he recognized a pattern to the spreading ice, as it naturally propagated through the memories of her sister and spread out from there to encompass the rest of her short life.
Pulling back, he sighed heavily. "The ice has tainted her memories and her mind." He placed a hand across her forehead, the chill seeming to seep into his palm with a tingling numbness. "It is spreading through her memories of her sister." He looked from Anna to the elder twin who was quietly crying into her sister's hair, then to their parents. "I suggest removing the memories of her sister in order to prevent the spread of the ice. It seems to be contained to her mind right now, but there's a chance it could spread to the rest of her body if I do not stop it now."
Agdar looked to his wife who had a hand to her mouth as she covered her worry, then to Dumbledore, his lips set in a determined line as he nodded. "Do what you must."
Elsa looked up as Dumbledore reached for Anna. "She won't remember I have powers?" she asked innocently.
He nodded, and then waved his wand in front of the blonde girl, sending her into a gentle yet deep sleep. Idun caught her with a gasp as the old man sighed heavily, vaguely aware of the snow melting away and the temperature of the room rising dramatically. "Give me a moment, then I have much to explain and very little time to waste, I'm afraid." With his cryptic words, he aimed his wand at the younger twin's forehead, sending his will into her mind.
Altering and erasing memories took a much more advanced memory charm than simply intoning the Obliviate charm. This work took finesse and focus, but with his skill and power he made quick work of it. Luckily he was able to use the ice spreading across her mind to track which memories would need to be removed or altered. And he did so, blurring or fading any traces of her twin until there was little to no hint of the life the two had shared together. It was a painful thing for him to have to do, especially for he who had lost his own sister in his arrogant youth. At least he was able to imprint some kind of happiness left behind of the times spent with the older twin.
With a heavy sigh, he pulled back from the girl, noticing as he did that the strand of white hair was gone leaving her hair its natural, fiery red. "It is done. I could not save her from her memories of her sister, nor do I know the how long the effects of my magic will hold up should she come into contact with Elsa's magic. Therefore the two will have to remain separated until such a time as Elsa learns to control this power she possesses." He stood, turning to Agdar as the man gathered the young redhead into his arms. "I give you this choice and will comply with whichever you agree is best for Elsa."
He waited for the man, who nodded slowly, and continued. "I can leave Elsa's memories of her sister and what has transpired here today and trust you to teach her control over her magic. Or I can remove her memories of her sister and this tragic event. Yet," he said when Agdar made to speak, "Her ice magic will remain and will still need to be controlled, and there will always be an impression between the two girls, a sense of something missing. The two will need to be separated regardless."
"Separated?" Idun said in a small voice. She was clutching Elsa close, and the sight of her distress made his next words even more difficult.
"Yes, they can never know of the other until such a time as Elsa learns to control this magic. I don't know what will happen to Anna if her memories should return, and I know you would not want to risk her life."
The couple looked at one another and then their daughters, taking a long moment of silent communication through looks and sighs. Then Idun nodded to her husband who turned to Dumbledore. "Take Elsa's memories of Anna. It will be for the best that neither of them lives with the memory of their loss."
Dumbledore nodded and gestured for Idun to present Elsa. The woman stepped forward hesitantly, the pale girl seeming to cringe even in her spell-induced dreams. She had a strong will, this one, and he knew that she would need it for the life that awaited her.
Pointing his wand at her forehead, he sent his will surging into her memories, his magic flowing across her mind and into her subconscious. He thought it would have taken him longer to find her memories of her sister and alter or erase them, but it seemed her thoughts were infused with the essence of her sister, worry and fear tainting every corner of her mind. Yet it guided him as easily as the ice had through Anna's mind, and he used it to steal those precious memories from her and leave her with alternate variations to fill their void.
When he was done, he sighed and pulled back to himself, Idun stepping back to her husband quickly as they cradled their daughters between them. "Now, as for their arrangements, I would ask that one of them be sent to Beauxbatons Academy of Magic, and the other will come to Hogwarts. This will further ensure their memories stay buried and that Anna will remain free of the ice that was permeating her body."
They both nodded, looking to one another, a shared look of pain passing between them. Dumbledore understood, he was asking them to separate as well, but in the end there was nothing for it. At least they had easy ways of seeing one another, what with the Floo Network and Apparition. That was one good thing in the wizarding world—distance was never truly a problem.
"One final thing," he said. "I will personally ensure that The Trace is removed from Elsa at once. This will guarantee that no one in The Ministry will be able to track her unusual powers." He paused and smiled softly at the girls cradled in the two others' arms. "This will also give you the chance to train her early in the ways of magic so that she may have a proper handle on these budding powers when the time comes for her to be sent off to school."
"So," Dumbledore said, stepping from the two. "I leave the arrangements to the two of you. I understand how difficult this will be and you have my support. Remember, there will always be help at Hogwarts for those who ask of it." He smiled sadly at the two of them, knowing in his heart it would undoubtedly be the last time he saw either of their faces again.
Agdar nodded then, their daughters held between the two parents protectively. "Thank you, Dumbledore. We would be lost without you. We all would." His words filled the older man with a warm yet sad glow, and some part of Dumbledore suspected the man knew the fate awaiting him. He would always be grateful to them, and all of the many people whom he considered his dearest friends and family.
It was decided that Agdar would stay in their estate with Elsa, as she was the firstborn of the twins and heir to their family's legacy, and Idun would take Anna to the States to stay with Agdar's brother and his wife, Adam and Belle Summers. Dumbledore was confident in their arrangements, sure that the girls would be in the proper settings to develop and live happy, free of the weight of Elsa's strange and mysterious power and the dangers it presented.
Another step that was requested of Dumbledore was for him to cast the Fidelius Charm over the entire event. It was an extremely difficult piece of magic to perform, yet the olden wizard was one of the few who could do so without complication. The Secret was set to blot out Anna's existence from their family entirely, so that no one would question the sudden disappearance of the young redhead. Her very name would disappear from any records, only a vague recollection in the back of society's minds that she had ever lived.
Dumbledore was hesitant to agree to this, knowing just how dangerous the Fidelius Charm could be when it came to trusting the right person. But both Agdar and Idun pleaded with him to provide this final bit of help, agreeing to become the Secret Keepers for that terrible night's events. In the end, he agreed to perform the spellwork necessary, but only after the two parents were made aware that the more people whom were made aware of the Secret the further diluted its effectiveness would be and that they would have to be very careful with whom they entrusted this with.
And so it was with a heavy heart he left the Arendelle family to the rest of their planning. He had stayed longer than he had intended. He had a difficult task ahead of him that day still and not much time left to see to its details. He was taking Harry to search out a Horcrux that he suspected dwelt in a cave that Tom Riddle had fancied in his youth, and he would need to prepare himself.
Yet, he thought as he left the Arendelle Manor, he couldn't help but feel that not even their careful planning would be able to keep the two girls apart.