OK so I realllllly loved this one. I've been meaning to read it for ages and, as it turns out, my timing was perfect because the sequel just came out so I don't have to wait to find out how it ends! 
 A really great, fun quasi-horror story in the manner of Christopher Pike. The characters and plot are more fully developed that in Ten, another book by the same author that I really liked. 
 The blurb compares this to Pretty Little Liars meets The Breakfast Club, but I'd liken it to PLL + Revenge + Christopher Pike. Super fun, totally recommended.