Witches Island

Katri Vix is just a normal girl. Well, sort of. Living in a world where magic is banned, Katri has a secret power, that could get her banned from the city and taken to witches island. An island where all magic people are taken, where they must fight to stay alive. (I know the description isn't great, but give the story a chance?). ((Sorry for any grammar mistakes, I'm only 11))