Pretty girls : a novel / Karin Slaughter.

A sophisticated and chilling psychological thriller of dangerous secrets, cold vengeance, and unexpected absolution, in which two estranged sisters must come together to find truth about two harrowing tragedies, twenty years apart, that devastate their lives -- the disappearance of a teenage girl and the murder of a middle-aged man, almost a quarter-century apart. What could connect them? Forming a wary truce, the surviving sisters look to the past to find the truth, unearthing the secrets that destroyed their family all those years ago . . . and uncovering the possibility of redemption, and revenge, where they least expect it.