“The two often go together,” said Poirot enigmatically.

The remark seemed so utterly irrelevant that I did not even take the trouble to answer it. But I decided that if I made any interesting and important discoveries—as no doubt I should—I would keep them to myself, and surprise Poirot with the ultimate result.

There are times when it is one’s duty to assert oneself.


CHAPTER IX

DR. BAUERSTEIN

I HAD had no opportunity as yet of passing on Poirot’s message to Lawrence. But now, as I strolled


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it on her bunch; but on her bunch I found what was obviously the duplicate key, very new and bright, which led me to the hypothesis that somebody else had inserted the original key in the lock of the despatch-case.”

“Yes,” I said, “Alfred Inglethorp, without doubt.”

Poirot looked at me curiously.


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