I am grateful to the persons listed below whose good will and cooperation helped me with this story.
The behaviour of Detective Inspector Hunter and other members of the police in this novel is mostly non-regulation. The same applies to the medical examiner, his assistant, and the mortuary technician. In order to ground the extravagances of my fiction in fact I was allowed, through the courtesy of Superintendent Heather Valentine, to visit Hammersmith police station where Inspector Steve Tysoe kindly showed me around and explained custodial procedure. Anthony Berry of Scotland Yard very patiently helped me with police terminology and organisational detail.
Mortuary technician David Webber was my guide at the Chelsea & Westminster Hospital mortuary.
Irean Pazook, of Regent Palace Hotel Reception, and Eden Parvus, Security Manager, gave me access to the room where the fictional Ralph Darling stayed.
Carol Lee gave me jewellery-making details.
Brom Hoban instructed me in the process by which Istvan Fallok isolated the video image of Justine Trimble.
Jake Hoban accompanied me on Grace Kowalski’s walk through Soho to the fateful confrontation in Cecil Court.
Gundula Hoban, as always, helped me with all kinds of London detail.
Katherine Greenwood rescued me from a multitude of errors and put in hours well beyond the call of duty.
I find it impossible to stop writing, and I hope that Liz Calder, my publisher, may be forgiven for supporting my addiction.