Diane Jeffrey, winner of an International Thriller Writers Award, returns with a brilliantly tense thriller which explores how much a parent can ever truly know their child. When a young man is found murdered in a quiet rural village, it sends shock waves through the close-knit local community. But Carla is more concerned for her teenage daughter, Iris. When Joshua was alive, he humiliated Iris in the worst possible way, and now she'll be the main suspect in his murder. As the police investigate every lead, Carla must navigate the murky waters of guilt and betrayal as well as her growing suspicions of what her own daughter might be capable of. When a shocking revelation threatens to tear her family apart, Carla is forced to ask herself how far she'll go to protect her loved ones. In a world of secrets and deception, can a mother truly know what lies beneath the surface? A Mother Always Knows is the powerful new thriller from Diane Jeffrey.