“Supposed to be,” I replied. “But we’ll hope they aren’t all tarred with the Profiteering brush.”

Poirot gazed round him placidly.

“The sight of so many jewels makes me wish I had turned my brains to crime, instead of to its detection. What a magnificent opportunity for some thief of distinction! Regard, Hastings, that stout woman by the pillar. She is, as you would say, plastered with gems.”

I followed his eyes.

“Why,” I exclaimed, “it’s Mrs. Opalsen.”

“You know her?”

“Slightly. Her husband is a rich stockbroker who made a fortune in the recent Oil boom.”