Three years after the disappearance of teenage sisters Cass and Emma, Cass returns home with a riveting tale of a hidden pregnancy, a kidnapping, a mysterious island, and a daring escape—and a desperate plea to rescue her sister. But forensic psychiatrist Abby Winter doesn't quite buy Cass's carefully recounted story, and she fears the answer to Emma's whereabouts may lie closer to home in this searing psychological thriller. (AG)
This title is included in our 2021 Book a Month: Mysteries package.