Open to title suggestions (as you can probably tell from my pathetic title)

Lea is just another high-school student in Seaside High preparing for her SATs and waiting to enroll in a college. But one day, when she finds out her best friend's great secret, she gets swept up in a grand murder plot that seems to have layer after layer of scheming and betrayal... Lea teams up with her childhood friend and her best friend's little brother to uncover the truth- but is this really for the best? How many more betrayals will they encounter? The more important question is, what lengths with the murderers pay to keep their secret covered?