So I read it when I was about 10-13ish?
It was kind of weird, there was this girl, and her name was Blake, because she discovers that her parents were William Blake fans. There's a part about her having a bar code tattooed on her wrist or something. Her parents I believe are dead. Also, I think they're living in a time of extreme oppression, hence the barcode... might be a chance of war?
I've had it on my mind for about 6 years and I cant seem to remember the name of it! Thanks