After seventeen-year-olds Chole and Shara, Chole's rival for valedictorian, kiss, Shara vanishes leaving Chole and two boys, who are also enamored with Shara, to follow the trail of clues she left behind, but during the search, Chloe starts to suspect there might be more to Shara and her small Alabama town than she thought.
I Kissed Shara Wheeler by Casey McQuiston
a novel