Perfect by Sara Shepard

In this gripping installment of the series, the lives of four high school friends unravel as they grapple with the mysterious disappearance of their friend Alison. Each girl harbors secrets that threaten to destroy their seemingly perfect lives, and as they receive cryptic messages from an anonymous source known only as "A," the tension escalates. The story delves into themes of friendship, betrayal, and the lengths people will go to protect their darkest secrets, all while maintaining a suspenseful and thrilling narrative that keeps readers on the edge of their seats.