
No, the ‘didactic purpose’ of which Knox complains is the strangeness of Chesterton’s world, and the shapes into which he will stretch it to get his effects. Nearly every story has an intense and unreal description of a landscape, as if to say: ‘see how nature reacts to wrong doing’. The same devices are used over and over again: the word ‘silver’ appears in most stories, because it gives a certain impression of heightened reality. It is used as shorthand for a visual extreme (white, dazzling) with a hint of the supernatural (the villain of ‘The Dagger With Wings’ makes out that his victim only died because he was shot with an improvised silver bullet). In two stories dwellings are overhung with storm clouds while the sun shines on the surrounding murder-free suburbs. The other side of this strangeness, and the reason why it is effective, is the exaggerated normality of some characters. Father Brown himself is the obvious example, but there are others, and Knox objects to Chesterton’s use of this device to hide clues:
There is something artificial in a convention which allows us to say that nobody has entered a house when in fact a postman has entered it […]. There is something top-heavy about a society in which a fellow guest is indistinguishable from a waiter if he cares to walk in a particular way. (p. xvi)
Maybe I don’t care enough about the integrity of detective story plots, but this strikes me as unfair. Many of these stories achieve their effects through mistaken identity, and it doesn’t seem at all beyond the bounds of reality (let alone Chesterton’s skewing of it) that a criminal might want to disguise himself by posing as a postman or a waiter. If a moral point is being made that such people are unjustly ignored, what of it? And if clues are left undeclared, what of that? The atmosphere is the important thing.
I do agree with Knox when he says:
it may reasonably be maintained that a detective story is meant to be read in bed, by way of courting sleep; it ought not to make us think – or rather, it ought to be a kind of catharsis, taking our mind off the ethical, political, theological problems which exercise our waking hours by giving us artificial problems to solve instead (p. xv).
For years I had the habit of falling asleep to Basil Rathbone Sherlock Holmes films, and would be hard put to think of a better way of drifting off. This partly works, of course, because the films are so bad it doesn’t matter how you mistreat them: watched in 10 minute chunks, with gaps of consciousness in which you doze off before half waking and pressing ‘stop’ on the remote, they don’t lose a thing. With his repetitions Chesterton sometimes gives the same impression of flippancy, of insubstantiality. Here is the opening paragraph of ‘The Honour of Israel Gow’, as impressive as it is meaningless:
A stormy evening of olive and silver was closing in, as Father Brown, wrapped in a grey Scotch plaid, came to the end of a grey Scotch valley and beheld the strange