“Never does Hercule Poirot talk nonsense. It is as I say.”

Again there was a silence. Poirot broke it by inquiring:

“Have you seen any of our Riviera friends since you have been back, Mademoiselle?”

“I have seen something of Major Knighton.”

“A-ha. Is that so?”

Something in Poirot’s twinkling eyes made Katherine lower hers.

“So Mr. Van Aldin remains in London?”

“Yes.”

“I must try to see him tomorrow or the next day.”