"M. Van Aldin looks ill," he said.
"Do you wonder?" asked Knighton. "The scandal of Derek Kettering's arrest has about put the lid on things, as far as he is concerned. He is even regretting that he asked you to find out the truth."
"He should go back to England," said Poirot.
"We are going the day after to-morrow."
"That is good news," said Poirot.
He hesitated, and looked across the terrace to where Katherine was sitting.
"I wish," he murmured, "that you could tell Miss Grey that."
"Tell her what?"
"That you—I mean that M. Van Aldin is returning to England."
Knighton looked a little puzzled, but he readily crossed the terrace and joined Katherine.
Poirot saw him go with a satisfied nod of the head, and then joined Lenox and the American. After a minute or two they joined the others. Conversation was general for a few minutes, then the millionaire and his secretary departed. Poirot also prepared to take his departure.
"A thousand thanks for your hospitality, Mesdemoiselles," he cried; "it has been a most charming luncheon. Ma foi, I needed it!" He swelled out his chest and thumped it. "I am now a lion—a giant. Ah, Mademoiselle Katherine, you have not seen me as I can be. You have seen the gentle, the calm Hercule Poirot; but there is another Hercule Poirot. I go now to bully, to threaten, to strike terror into the hearts of those who listen to me."
