I own nothing but Elouise.
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It was whiteout conditions when Dumbledore arrived within a few feet of the protective wards. He patiently waited for Sir Daniels to arrive and escort him to the temple. Antarctica was the homeland of the most ancient magical community. Everything was white, a trait developed even within the people over centuries as a camouflage.
Sir Daniels arrived within minutes to lead Dumbledore to the temple. A young girl waited inside, dressed in a traditional white gown. Her hair was long and swayed with the breeze.
"She is just as you have request Albus. A young female, intelligent, and as you said she would be, mute. We have awaited many years for the girl to arrive, and now she has come just as you said. We offer her to you in the hopes the wizarding world may still be saved. Her name is Elouise, she is eleven," spoke Sir Daniels with only respect towards girl.
"Sir Daniels, I thank you. The child shall be well protected and cared for. Her classes at Hogwarts will start in a week. We shall be certain if she is the right girl then based on the house she is sorted into." With that Albus took Elouise and placed her where he felt she would be safe, with Remus Lupin. He was not a wealthy man nor important, thus he would easily hide the girl when not at school.
Elouise resided with Remus for a whole week before she arrived at school. Se stood before the crowd as her name was called for sorting, "Elouise Halo." The girl silently walked up to the chair placed in front of everyone, and the sorting hat was placed on her head.
The hat spoke to her, "Such a special girl you are. Perhaps you are better suited for another house, but a hat like me must hold true to fate. Be strong and you will prosper. SLYTHERIN!"
Albus leaned towards Severus, "She is definitely the one we have been seeking." Severus made no motion.