I wrote a guest post over at A Dribble of Ink on the art of writing Locked-Room Mysteries:
To create this set-up, though, I had to completely change how I approached a novel. Not only was I using a different narrative voice, but the whole process was entirely new – it had to be. And it was really, really difficult – by far the most difficult thing I’ve done in prose. However, I learned plenty of things from this process and from my research into locked-room mysteries, particularly from writers such as John Dickson Carr, the master of the genre.
So I’ve handily transformed my learning into an Internet-friendly list.
If you’re interested in writing, or reading crime fiction in general, you can read that list here.