Natasha Brown

I am looking for a book that I forgot what it was called but what I can remember was it that it was a Female Harry Potter/ Black story with female Harry has a group called the Emeralds and Mortem. Does anyone know what it is called or who wrote it?

Thank you for reading my story! I hope you like it 

Hey, thank you so much for adding The Shy Girl to your list I hope you like it xx