I can’t imagine what five Jeffrey Archer signatures are worth: a packet of cigarettes, perhaps? But I am grateful for this trade, because I have a feeling that being allowed to write in this hellhole may turn out to be the one salvation that will keep me sane.

While I wait for Lester to return and escort me from my cell to a shower – even a walk down a long, drab corridor is something I am looking forward to – I continue writing. At last I hear a key turning and look up to see the heavy door swing open, which brings its own small sense of freedom Lester hands me a thin green towel, a prison toothbrush and a tube of prison toothpaste before locking me back in. I clean my teeth, and my gums bleed for the first time in years. It must be some physical reaction to what I’ve been put through during the past twenty-four hours. I worry a little, because during my interrupted night I’d promised myself that I must remain physically and mentally fit. This, according to the prison handbook left in every cell, is nothing less than the management requires.

After a night on the medical wing, one of my first impressions is how many of the staff, dressed in their smart, clean black uniforms, seem able to keep a smile on their face. I’m sitting on my bed wondering what to expect next, when my thoughts are interrupted by someone shouting from the other side of the block.

‘Mornin’, Jeff, bet you didn’t expect to find yourself in ‘ere.’

I look through my tiny window and across the yard to see a face staring at me from behind his own bars. Another grin. ‘I’m Gordon,’ he shouts. ‘See you in the exercise yard in about an hour.’

9.00 am

I’m let out of the cell and walk slowly down the corridor, to enjoy my new-found freedom, as Lester escorts me to the shower room. I feel I should let you know that in my apartment on the Albert Embankment, perhaps the facility of which I am most proud is the shower room.