NEW YORK TIMES BESTSELLER When Special Agent Will Trent arrives in Grant County, he finds a police department determined to protect its own and far too many unanswered questions about a prisoner's death. He doesn't understand why Officer Lena Adams is hiding secrets from him. He doesn't understand her role in the death of Grant County's popular police chief. He doesn't understand why that man's widow, Dr. Sara Linton, needs him now more than ever...

On a hot summer night, a scientist from the Centers for Disease Control is grabbed by unknown assailants in a shopping center parking lot. Vanished into thin air, the authorities are desperate to save the doctor. One month later, the serenity of a sunny Sunday afternoon is shattered by the boom of a ground-shaking blast. Medical examiner Sara Linton and her partner Will Trent, an investigator with the Georgia Bureau of Investigation, rush to the scene....