My ex-husband invited the former wife he believed was still childless and miserable to his family’s Christmas at their military estate. He never imagined I would arrive on a government tactical helicopter — with four eight-year-olds who had his face.

None of them said anything. Zuri had her hand in mine and she tightened it, which nobody else in that room saw.

His fingers closed round that box.

The woman next to him turned and looked at them properly, one at a time, the way you do when you are being shown something.

Then she looked at him.

And her face came off. All of it, in about one second.

“Grayson,” she said. “Who are those children?”

He opened his mouth and nothing came out of it.

I stopped about four feet in front of him.

And for the first time in eight years I was standing in front of the man who had told me, in a car park, that those children were never going to be his responsibility.

I did not raise my voice.

I had four sentences written. I had been working on them since the Thursday and two of them were extremely good and one of them was about his father.