Caroline merely continued to look omniscient, which so annoyed me that I went on:

“Perhaps you will tell me, Caroline, if I have a medical degree or if I have not?”

“You have the medical degree, I dare say, James⁠—at least, I mean I know you have. But you’ve no imagination whatever.”

“Having endowed you with a treble portion, there was none left over for me,” I said drily.

I was amused to see Caroline’s manoeuvres that afternoon when Poirot duly arrived. My sister, without asking a direct question, skirted the subject of the mysterious guest in every way imaginable. By the twinkle in Poirot’s eyes, I saw that he realized her object. He remained blandly impervious, and blocked her bowling so successfully that she herself was at a loss how to proceed.

Having, I suspect, quietly enjoyed the little game, he rose to his feet and suggested a walk.