I admit it, I picked Brenna Yovanoff's Paper Valentine up for it's lovely cover, and the blurbs on the back induced me to read more. (And now that I know she's Maggie Stiefvater's critique partner, I'm even more swayed by the book).
I thought this was a lovely, creepy sort of romance. Hannah's life in quiet Ludlow has taken quite a turn: she's haunted by the ghost of her best friend Lilly, who starved herself to death six months ago. And then there's the incessant heat, and the strange disease that's killing local birds. To add to the uneasy ambience, someone has started killing girls in town and leaving paper valentines by their bodies--and only Hannah and Lilly seem to have noticed the connection. Hannah's otherworldly connection to Lilly seems to make her more receptive to other ghosts as well, and soon it seems that if Hannah doesn't stop the killer, she might be the next victim.
I thought the writing was spare and lovely, the characters interesting, and the pacing good. I really enjoyed the book, but it's probably not one I'd go back and re-read.