There’s a very specific subgenre in the murder mystery/crime arena that has its own rules and effectively presents the reader with a seemingly impossible puzzle. It’s not enough for the characters to be isolated (
The first and still the most famous locked-room mystery is said to be
The real problem of the locked-room mystery is that the mechanics are often so complicated and even contorted that it’s hard to believe the murderer could go to so much trouble, and the emotions of the story can disappear in a Heath Robinson construction of cogs and wheels, mirrors, sliding doors and body doubles. As much as you may admire the solution, you are forced to suspend disbelief. The killers are so clever that they seem positively inhuman, literally so in Poe’s story. It’s difficult to avoid a sense of contrivance.
Try reading
It’s my belief that, these days, the best locked-room mysteries come from Japan. Try
I only mention all this to explain why my immediate reaction to the last batch of material I had received had been one of dismay. Hawthorne was insisting that Roderick Browne had not committed suicide and all the ingredients of the locked-room mystery were set out in front of me. Nobody could have got into the garage. There was only one key fob, which Roderick must have used to lock the car doors
Of course, that would be even worse. It would mean that Morton was right and that the story wasn’t worth writing. Hawthorne hadn’t solved anything and the killer had simply confessed. The end.
I’d been depressed enough when I left the offices of Fenchurch International. Morton had ruined everything for me by revealing the solution . . . which I’m sure was exactly what he’d intended. And so far, he’d been spot on. Khan had said the case was closed. Roderick Browne had been named as the killer and he had then taken his own life. Where did that leave me? With a very short book, for a start, more a novella than a novel. And I couldn’t see my editor jumping up and down with excitement when the manuscript was delivered.
So, on reflection, I realised that a locked-room mystery might be exactly what I needed. If it turned out that Roderick Browne’s entire garage swivelled round to reveal a hidden staircase which had allowed someone to gain access through an underground passage that connected with the medieval well, I’d just have to grit my teeth and get on with it. At least it would mean that Roderick Browne hadn’t committed suicide after all and that someone had indeed murdered him; presumably the same person who had shot Giles Kenworthy.
But who?