Nightblood - Ruth Silver - Bog

I never felt special. I wasn't a superhero.
I'm an ordinary girl. At least I was back home. But I got whisked away by a boy from a parallel universe.
And everything I thought I knew about magic was dead wrong.
Their world is a barren. It didn't used to be, a demon sorceress destroyed everything in Orenda and is determined to cross over and make my world her next magical wasteland.
I can't let that happen. But first I have to save my best friend.