Charlotte Halliwell has a secret.

But before revealing it to her sister Audrey, she's found dead. At first glance, it appears to be nothing more than a skiing accident, until the medical examiner discovers poison coursing through Charlotte's body.

Audrey hires Sloane Monroe, a sassy, headstrong private investigator. As Sloane gets close to solving the case, a second body is found. With the killer aware that Sloane will stop at nothing to find him, he tracks her every move. Will Sloane uncover the truth before he strikes again?

If you're a fan of Agatha Christie and Mary Higgins Clark, you'll enjoy this fast-paced, page-turning mystery.

A New York Times and USA Today bestselling series.