Solve for X: Every Secret Has a Solution

After the shocking murders of two classmates, high school student Emma Elizabeth Austin and her friends are drawn into a dangerous investigation. The case eerily echoes the unresolved car accident that claimed their parents' lives a decade ago, a tragedy Emma cannot remember. When a mysterious figure known only as "Hunter" begins sending them taunting letters, the girls realize they are pawns in a deadly game. As they dig deeper, they uncover a web of lies, revenge, and long-buried secrets ...