I don’t know how long it will take you to convince the police that they need to take action, Jack. But I know you. You’ve already tried to deny Pam on Facebook, posting in the middle of the night because someone has alerted you. You’re like your mother. You won’t wait for morning. You’ll call DS Percy, because you like the personal contact. You think it gets you further.

I know you. You’ll have done all this already and you’ll have made sure that you get an assurance that whatever device is posting to Monica’s account is traced. You’ll know the location is on because you’ll have seen I tagged our home. You’ll think it is a done deal.

If I can find out where my mobile is using ‘Find my phone’, then the police will have something much more efficient. I expect they will trace Monica’s phone and the laptop IP address. DS Percy will put two and two together and know that whoever posted the pictures has the holdall and will search her house. And your mother will let them.

I try to imagine her face when they find the bag. I wish I could be there, in the cloakroom, looking out onto the scene. Her working out how it got there, puzzled because she was so sure that she had destroyed me.

Watching as they open the holdall in her pristine kitchen and all the pictures fall out, Pam Harding’s on top. Their faces as they realise what the journal is. What it has recorded. DS Percy’s expression of distaste as she begins to understand the full situation. Asking herself who marks women out of ten? What sort of man takes photographs of himself having sex with his mistresses?

It will all be out in the open. They’ll know what this was about, what you were trying to hide. They’ll even see what you said about me. That I am stupid. Naïve. Your mother will look like a bitter woman who is mistreating her daughter-in-law. Of course, she will try to turn it around and tell them that she was doing it to protect me. That of course you needed to suffer after what you had done to poor Caroline. That she was helping me with the children. So it all looks good for her.

But the fact will remain that the bag was found in her home and the phone, with recent texts, in her hallway. The only conclusion the police can reach is that she has done it. She has harassed your exes and because you have made an official complaint about the holdall, she will be blamed. Perfect.