In the back of my mind when I started The Invisible Event was the idea that exactly half of what I’d post about would feature impossible crimes, locked room mysteries, and/or miracle problems — and although this proportion started an irreversible slide after the first 500 or so posts, the impossible crime remains my first love.
Continue readingGaston Leroux
#808: Reflections on Detection – The Knox Decalogue 8: Declaration of Clues
Twenty months ago I set out to examine each of the ten rules in Ronald Knox’s detective fiction decalogue in laborious detail; this month, that project will finally be completed. Then I can finally return to The Criminous Alphabet, eh?
Continue reading#702: Shedunnit x The Invisible Event – Locked Room Mysteries

You’re doubtless aware of the superbly wide-ranging Golden Age-focussed Shedunnit podcast run by Caroline Crampton, and I was delighted to be asked to contribute to an episode about locked room mysteries and impossible crimes. The results are now online for your listening pleasure.
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#661: The Mystery of the Yellow Room (1907) by Gaston Leroux [trans. ???? 1909]






Can a book still be a masterpiece if it’s not brilliant? In the case of Gaston Leroux’s debut The Mystery of the Yellow Room (1907) — which plays up to and anticipates so many of the established and forthcoming trappings of detective fiction — I’d say yes. The focus on propelling the plot at a time when even those who were focussed on plot weren’t exactly propulsive is both admirable and impressive, and the creativity Leroux brings to a subgenre that would utilise the secret passage for another 60+ years is staggering. But it would be folly to claim that age has not caught up with it and that this was in the same class as the genre’s genuine masterpieces of the 1930s.
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#527: Plotting the Perfect Crime – Potential and Pay-Off via The House of Haunts, a.k.a. The Lamp of God (1935) by Ellery Queen





