Pretty Little Liars
I haven't watched the tv show. I'm not a big fan of teenage angst and drama so I didn't think this would be for me. Surprisingly, I liked it quite a bit actually. In the beginning, I was worried that it was actually going to be middle grade level because that's where it starts, but most of the story happens when they are in the last couple of years in high school. The author does a good job of making you interested to learn who A is.