Which is how I came to be standing around Covent Garden in a freezing wind at six o’clock in the morning, and why it was me that met the ghost.

Sometimes I wonder whether, if I’d been the one that went for coffee and not Lesley May, my life would have been much less interesting and certainly much less dangerous. Could it have been anyone, or was it destiny? When I’m considering this I find it helpful to quote the wisdom of my father, who once told me, ‘Who knows why the fuck anything happens?’

Covent Garden is a large piazza in the centre of London, with the Royal Opera House at the east end, a covered market in the centre and St Paul’s Church at the west end. It was once London’s principal fruit and veg market but that got shifted south of the river ten years before I was born. It had a long and varied history, mostly involving crime, prostitution and the theatre, but now it’s a tourist market. St Paul’s church is known as the Actors’ Church, to differentiate it from the Cathedral, and was first built by Inigo Jones in 1638. I know all this because there’s nothing like standing around in a freezing wind to make you look for distractions, and there was a large and remarkably detailed information plaque attached to the side of the church. Did you know, for instance, that the first recorded victim of the 1665 plague outbreak, the one that ends with London burning down, is buried in its graveyard? I did, after ten minutes spent sheltering from the wind.

The Murder Investigation Team had closed off the west of the Piazza by stringing tape across the entrances to King Street and Henrietta Street, and along the frontage of the covered market. I was guarding the church end, where I could shelter in the portico and WPC Lesley May, my fellow probationer, guarded the Piazza side, where she could shelter in the market.