The Girl who Lived

What if Harry Potter had a twin sister? Who also surrvived that faithful night. Ella Rose Potter is the sister of Harry Potter. When Voldemort tried to kill the twins but due to the protection their mother had given them saved their lives. Harrys story was known to the world. He was the boy who lived. Ellas was known too. She was the girl who lived. But her brother was more famous. Because of the prophecy. That he would be the one to kill Voldemort. Ellas destiny was far less known. She was just the twin who got lucky. Or was she?
When these two kids meet for the first time in ages. Will they recognise each other? What will happen when Dumbledore tells them the truth?
Follow Ella's journey through hogwarts and her relationship with everyone. And as her feelings develop for a certain Slytherin. Who happens to be her brothers worst enemy.