and by means of it you can obtain a photograph of the finger-prints of any object in a very short space of time. Well, my friend, you have seen the finger-marks—it remains to tell you the particular object on which they had been left.”
“Go on—I am really excited.”
“Eh bien! Photo No. 3 represents the highly magnified surface of a tiny bottle in the top poison cupboard of the dispensary in the Red Cross Hospital at Tadminster—which sounds like the house that Jack built!”
“Good heavens!” I exclaimed.
“Those witnesses were mistaken.”
I was puzzled. The man spoke with such quiet assurance that I was staggered. I looked at Poirot. There was an expression of exultation on his face which I could not understand. Was he at last convinced of Alfred Inglethorp’s guilt?
“Mr. Inglethorp,” said the Coroner,