Who killed Emily Vaughn? The stunning new standalone thriller from international No. 1 bestseller Karin Slaughter. A girl with a secret ... Longbill Beach, 1982. Emily Vaughn gets ready for prom night, the highlight of any high school experience. But Emily has a secret. And by the end of the evening, she will be dead. A murder that remains a mystery ... Forty years later, Emily's murder remains unsolved. Her friends closed ranks, her family retreated...