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. Perfect for fans of The Wife Between Us, The Girl on the Train and anything by Shari Lapena.