Creeping with the Enemy — Kimberly Reid

Using skills learned from her mom, an undercover cop, Chanti Evans has already exposed lies and made enemies at her posh new school, so she's no stranger to the games people play. But she's learning the hard way that at Langdon Prep, friends can play more dangerous games than any enemy.

There's nothing like having someone in your corner when you're the new girl in school, but Chanti can't help suspecting that everything about her new friend, Bethanie, is a lie -- especially once she starts skipping classes and blowing Chanti off for her mysterious crush, Cole. Chanti really doesn't need the trouble of finding out the truth. She's busy enough trying to convince her hot almost-boyfriend Marco that her amateur sleuthing won't come between them again. But when Bethanie disappears with Cole, Chanti has only one chance to find her -- even as her investigation puts her love life, and everything else, at risk....