FBI agent Atlee Pine is at the end of her long journey to discover what happened to her twin sister, Mercy, who was abducted when the girls were just six years old - an incident which destroyed her family and left Atlee physically and mentally scarred. She knew her sister and parents were out there somewhere. And she had to find them. Dead or alive. Atlee Pine's quest to find her missing sister reaches an explosive climax in this bestselling series from David Baldacci.