My hand trembles as I stare at the anonymous text. On this sunny Saturday morning, our twin ten-year-old boys were playing in the park just down our tree-lined street. But only one of them has come home… and it’s all my husband’s fault. I race to Leo’s study and demand answers. As his face turns white, I know: one of his affairs has turned deadly. I always smell the unfamiliar perfume on his shirt. I try to pretend we are a happy family, for the sake of the children… but now, my child is in terrible danger.

Birdy thought she would have to wait until she was free again to see Rose, but now Rose has been convicted of a shocking crime and she and Birdy will be together. Birdy has been saving all her anger for Rose. It is Rose who should have protected her and kept her safe. Birdy was little but Rose was big, and she knows Rose could have saved her. This is a story about monsters who hide in plain sight and about the secrets we keep from ourselves. It is about children who are betrayed and adults who fail them.

Cassie Prince lives in a beautiful beach suburb with her successful husband Jon and their children Ellie and Danny. Life is perfect, right? Except now she's reached her mid-forties, she can't help wondering what happened to the fun-loving, sexy and accomplished woman she used to be. This isn't what was promised. She's panicking about ageing, bored in her marriage, exhausted by her demanding kids, and increasingly torn by news of her sick mother back in England. So Cassie does what she's always done - buries her feelings and ignores her problems (and does some more online shopping).

I gaze at my husband’s once handsome face, so still and pale in the hospital bed. The doctors say I should keep talking. He might be able to hear me even after the terrible accident that left him fighting for his life. But all I have to whisper to my husband is this: "I know what you did."

Her chest tightens, her heart speeding up. The kitchen is chaos. She steps on something hard, and looks down. Toy dinosaurs are scattered everywhere. But her son is nowhere–her baby boy is gone.