'It's me,' says the voice on the other end of the line. It's been thirteen years and I still recognise it. Thirteen years of nothing. Silence. Not even a birthday card. 'It's time for you to tell the truth. It's life or death.'

Three hours later, car tyres screech and the air bags release. For a second, nothing happens. There's only stunned silence and a ringing in my ears.

I peel open my eyes. What have I done? There's a groan, and I gasp, terrified, at the sight of the man next to me. This is all his fault.

Fumbling with the door, I half step, half fall into the freezing cold air. I'm shivering all over as my knees land on the tarmac. 'Help,' I whisper into the dark, empty street.

Then there's a flash of blue light. A siren. The police are coming. They will save me and arrest him. They will see a dangerous man and an innocent victim - a loving mother with a son she cherishes.

They have to - because they can't know the truth. They can't discover what happened thirteen years ago and what happened tonight. All those years back, the lies nearly destroyed us. I won't let that happen today.

It's my word against his. And there's no line I won't cross to protect my family.