The Obliviated Sister Enigma: A Harry Potter Fanfiction

Elizabeth Nels has always felt like something was missing.
And it turns out she was right.
She had a brother, that she didn't know. He had been obliviated from her mind, after he had run away to go to Hogwarts, and leave their awful household. Unfortunately, she was not able to escape along with him, and when she was supposed to be in her third year at Hogwarts, she got another letter.
Needless to say, she was shocked. In a hurry, she fled, knowing that perhaps, just perhaps, she could find her brother again.
Yet she contemplates her identity.
Her last name had ben changed by her parents. She had lost a crucial part of herself that she could only hope to regain.
But the question is, will she be able to?
P.S. You'll find a clue on her brother in the cover. :) In case I don't reveal it too soon, or hide it from you all.
-THIS IS A FANFICTION. ALL RIGHTS GO TO J.K ROWLING, WHO IS THE AUTHOR OF THE HARRY POTTER SERIES, AND THE MAKER OF THESE CHARACTERS. I AM ONLY MAKING A FANFICTION!-
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I hope you enjoy !