Reserved Slytherin

Niamh O’Shaunacey of pureblood decent was sorted into Slytherin without regard to her personality, or so she thinks. She’s not cunning and regards people’s feelings before doing anything, she reads books to past the time and is never rememebered until she tells people her last name; the deadly and ancient house of O’shaunacey.

Professor Snape, newly appointed defence against the dark arts teacher only notices the Slytherin girl, having mistaken her as a ravenclaw because of her demeanour, for the first time in her last year at hogwarts. He is shocked to find out she is in his house and has become head girl.