“Rids himself of his disguise. He and the bogus chauffeur may be arrested as suspicious characters, but no one will dream of suspecting their real part in the drama, and they will eventually be released for lack of evidence.”

“And the real Prime Minister?”

“He and O’Murphy were driven straight to the house of ‘ Mrs. Everard,’ at Hampstead, Daniels’ so-called ‘aunt.’ In reality, she is Frau Bertha Ebenthal, and the police have been looking for her for some time. It is a valuable little present that I have made to them⁠—to say nothing of Daniels! Ah, it was a clever plan, but he did not reckon on the cleverness of Hercule Poirot!”

I think my friend might well be excused his moment of vanity.

“When did you first begin to suspect the truth of the matter?”