High Voltage - by Karen Marie Moning
I just found Karen Marie Moning this year (behind the times, I know!) and she's quickly becoming one of my favorite authors. I devoured this book in a day and a half. Check it out on Amazon.
Her writing is just stunning, it's what I aspire to in my own writing. Big shoes to fill, I know! :)
If you haven't read any of her work yet, I'd suggest starting with Darkfever. You can buy it on Amazon here.