Agatha Mary Clarissa Christie, The Adventure of the Egyptian Tomb
“ You may think me a foolish, credulous woman, but, Monsieur Poirot, I am afraid. Supposing that the spirit of the dead King is not yet appeased? Perhaps to you I seem to be talking nonsense—’‘No, indeed, Lady Willard,’ said Poirot quickly. ‘I, too, believe in the force of superstition, one of the greatest forces the world has ever known.’I looked at him in surprise. I should never have credited Poirot with being superstitious. But the little man was obviously in earnest. ”
