Page:Chesterton - The Defendant, 1904.djvu/131

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is, in their eyes, a sort of spiritual manner of committing it. To persons of somewhat weak sensibility this is natural enough; it must be confessed that many detective stories are as full of sensational crime as one of Shakespeare's plays.

There is, however, between a good detective story and a bad detective story as much, or, rather more, difference than there is between a good epic and a bad one. Not only is a detective story a perfectly legitimate form of art, but it has certain definite and real advantages as an agent of the public weal.

The first essential value of the detective story lies in this, that it is the earliest and only form of popular literature in which is expressed some sense of the poetry of modern life. Men lived among mighty mountains and eternal forests for ages before they realized that they were poetical; it may reasonably be inferred that some of our descendants may see the chimney-pots as rich a purple as the mountain-peaks, and find the lamp-posts as old and natural as the trees. Of this realization of a great city itself as something wild and obvious the detective story is certainly the 'Iliad.' No one can have failed to notice that in these stories the hero or the investigator crosses London with something of the