Agatha Christie,
The Hunter's Lodge Case
(1924)
“ Somewhat crestfallen, I returned to London. I found Poirot established in an armchair by the fire. He greeted me with much affection.“Mon ami Hastings! But how glad I am to see you! Veritably I have for you a great affection! And you have enjoyed yourself? You have run to and fro with the good Japp? You have interrogated and investigated to your heart’s content?”“Poirot,” I cried, “the thing’s a dark mystery! It will never be solved.”“It is true that we are not likely to cover ourselves with glory over it.”“No, indeed. It’s a hard nut to crack.” ”
