Choker by Elizabeth Woods

Cara has been friends with Zoe since she was little, but Zoe seems to bring out the worst in Cara.  And Zoe seems to always show up when things start to get rough.  When two girls in town die, Cara thinks Zoe is at fault, but can't bring herself to terms with the fact.

This book was nothing like I expected.  It started out as the typical story of the high school girl who got picked on, but turned into so much more.  My jaw was legit hanging open as I read the last chapter.  Choker had a huge twist ending, but made the book so good.  I loved it.  It was a little darker than the books I usually read, but I'd definitely recommend it.  It still had a bunch of romance.