'Chillingly believable and absolutely addictive. I read it in three days flat.' Incredible.' LISA JEWELL'Terrifying stuff, elegantly written' Financial TimesTess has always tried to be a good mother. Of course, there are things she wishes she'd done differently, but doesn't everyone feel that way?Then Emma, her youngest, is attacked on her way home from a party, plunging them into a living nightma...