I am not going to set out what the first two years were. Everybody who has done it alone already knows, and everybody who has not does not need it described to them.
I will say this much.
I have carried two children with a temperature across a hospital car park at three o'clock in the morning, one on each side, with a bag over my shoulder.
And there is nothing on this earth as frightening as being the only adult in that car park.
And in the November of this year, after ten years of complete silence, that man sat in a chair under some lights and told eleven million people that his great sadness was that nobody had ever called him Dad.
So I picked up my phone and sent four words to Yusuf Darrow.
Yusuf. We're doing it.
He came back inside a minute.
Invitations secured. Testing's back. Press contacts arranged.