One

When Alexandra Smith gets sorted into Ravenclaw after 11 years living in a muggle world with no education, questions start to rise by other houses of why she knows so much. However all the other Ravenclaw's are just happy to have another smart mind in a school full of heros, villains and imbeciles.

***
DISCLAIMER
I don't own Hogwarts *it's expensive* or any other characters that already exist in the world of Harry Potter. This was written purely for your enjoying and takes place BEFORE Harry goes to school so nothing weird should happen.
Have fun!