Gripping the phone, my hands tremble with fear. I look at my son and wonder how my darling blue-eyed boy could have done this. But as my eyes focus down on the body, I know what I must do. I know it will destroy our lives forever. 'Hello? I need help. It’s my child. He’s killed someone.'

As my son looks at me, his eyes pleading for help, all I can think in that moment is that I will do whatever it takes to protect him. A young girl’s lifeless body lies on the ground and my heart breaks when I realise I’m already too late to save her.

Our family will never be the same again.

I know I should call for help. But looking towards the phone table I see an old picture of the children playing in the garden. Our children and hers. We used to be so close, I thought our families would be together for a lifetime. But in a moment of rage, the life I imagined has been snatched away.

But if I’m honest, I’ve been kidding myself about how perfect our lives were.

I’m a mother. I should be able to keep my children safe. But what I see in front of me cannot be denied. No one else is here. My son’s guilty.

How far will I go to protect him?

A completely gripping and pulse-pounding psychological thriller that will have you turning the pages late into the night. Perfect for fans of The Wife Between Us, The Girl on the Train and anything by Shari Lapena.