Pretty Girls by Karin Slaughter

A missing girl.
A family torn apart.
An unsolved mystery.

Twenty years ago, Claire and Lydia Scott's older sister vanished without a trace. Her disappearance had a devastating effect on their family.

Now another teenage girl is missing, and the circumstances of her disappearance are hauntingly similar to Julia's . . .

It's up to Lydia and Claire to revisit their past, unearthing the secrets that destroyed their family all those years ago.

Will they be able to face what they find along the way?