“When you were so kind as to show me the dagger and draw attention to the fingerprints. I know very little of loops and whorls⁠—see, I confess my ignorance frankly. But it did occur to me that the position of the prints was somewhat awkward. Not so would I have held a dagger in order to strike. Naturally, with the right hand brought up over the shoulder backwards, it would have been difficult to put it in exactly the right position.”

Inspector Raglan stared at the little man. Poirot, with an air of great unconcern, flecked a speck of dust from his coat sleeve.

“Well,” said the inspector. “It’s an idea. I’ll look into it all right, but don’t you be disappointed if nothing comes of it.”

He endeavoured to make his tone kindly and patronising. Poirot watched him go off. Then he turned to me with twinkling eyes.