I Kissed Shara Wheeler

Chloe Green is so close to winning. She's spent the four years since her moms moved her from Southern California to Alabama for high school dodging gossipy classmates and the puritanical administration of Willowgrove Christian Academy. The goal that's kept her going : winning valedictorian. Her only rival : prom queen Shara Wheeler, the principal's perfect progeny. But a month before graduation, Shaw kisses Chloe and vanishes.
On a furious hunt for answers, Chloe discovers she's not the only one Shara kissed. There's also Smith, Shara's longtime quarterback sweetheart, and Rory, Share's bad-boy neighbor with a crush. The three have nothing in common except Shara and the annoyingly cryptic notes she left behind, but together they must untangle Shara's trail of clues to find her. It'll be worth it if Chloe can drag Shara back before graduation to beat her fair and square.
Thrown into an unlikely alliance, chasing a ghost through parties, break-ins, puzzles, and secrets revealed on monogrammed stationery, Chloe starts to suspect there might be more to this small town than she thought. And maybe-probably not, but maybe-more to Shara, too. Fierce, funny, and frank, Casey McQuiston's I Kissed Shara Wheeler is about breaking the rules, getting messy, and finding love in unexpected places.