Agatha Mary Clarissa Christie, The Big Four (1927 (reprint 1985))
“ The Inspector paused triumphantly. “What do you think of that, gentlemen?” “I think,” said Poirot, “that it appears a clear case—of a surprising clearness, in fact. This Biggs, or Grant, he must be a man very very foolish and uneducated, eh?” “Oh, he is that—a rough, common sort of follow. No idea of what a footprint may mean.” “Clearly he reads not the detective fiction! Well, Inspector, I congratulate you. We may look at the scene of the crime. Yes?” “I’ll take you there myself this minute. I’d like you to see those footprints.” ”
