Lauren Henderson: Kiss in the Dark (2010)
From the Publisher:
Scarlett has dealt with Plum's nasty schemes before, and she can handle her archenemy very nicely, thank you -- until Plum sets her sights on Scarlett's best friend, Taylor, and new boyfriend, Jase. Then Scarlett is more than willing to fight for what's rightfully hers.
Things only get worse after Scarlett becomes entangled in a mysterious death on campus. Scarlett is compelled to investigate because she wants to protect someone close to her. She never imagines that she'll uncover secrets related to her parents' fatal accident so many years ago...
Lauren Henderson: Kiss in the Dark. Delacorte Books for Young Readers, ISBN: 9780385737777 (April, 2010), 256 p., $15.99.