"At it again, M. Poirot!
You do like making things difficult, don't you? Now for her ladyship, before she's quite ready to scratch my eyes out."
Lady Horbury, however, was noticeably calmer in her manner.
She accepted a chair and answered Japp's questions without the least hesitation.
She described herself as the wife of the Earl of Horbury, gave her address as Horbury Chase, Sussex, and Grosvenor Square, London.
She was returning to London from Le Pinet and Paris.
The deceased woman was quite unknown to her.
She had noticed nothing suspicious during the flight over. In any case, she was facing the other way - towards the front of the plane - so had had no opportunity of seeing anything that was going on behind her.
She had not left her seat during the journey. As far as she remembered, no one had entered the rear car from the front one, with the exception of the stewards.
She could not remember exactly, but she thought that two of the men passengers had left the rear car to go to the wash rooms, but she was not sure of this.
She had not observed anyone handling anything that could be likened to a blowpipe.
No - in answer to Poirot - she had not noticed a wasp in the car.
Lady Horbury was dismissed.
She was succeeded by the Honorable Venetia Kerr.
Miss Kerr's evidence was much the same as that of her friend.
She gave her name as Venetia Anne Kerr, and her address as Little Paddocks, Horbury, Sussex.
She herself was returning from the south of France.
As far as she was aware, she had never seen the deceased before.
She had noticed nothing suspicious during the journey.
Yes, she had seen some of the passengers farther down the car striking at a wasp. One of them, she thought, had killed it.
That was after luncheon had been served.
Exit Miss Kerr.
"You seem very much interested in that wasp, M. Poirot."
"The wasp is not so much interesting as suggestive, eh?"
"If you ask me," said Japp, changing the subject, "those two Frenchmen are the ones in this!
They were just across the gangway from the Morisot woman, they're a seedy-looking couple, and that battered old suitcase of theirs is fairly plastered with outlandish foreign labels.
Shouldn't be surprised if they'd been to Borneo or South America or whatever it is.
Of course we can't get a line on the motive, but I dare say we can get that from Paris.
We'll have to get the Sыrete to collaborate over this.
It's their job more than ours.
But if you ask me, those two toughs are our meat."
Poirot's eyes twinkled a little.
"What you say is possible, certainly; but as regards some of your points, you are in error, my friend.
Those two men are not toughs or cutthroats, as you suggest.
They are, on the contrary, two very distinguished and learned archaeologists."
"Go on! You're pulling my leg!"
"Not at all.
I know them by sight perfectly.
They are M. Armand Dupont and his son, M. Jean Dupont.
They have returned not long ago from conducting some very interesting excavations in Persia at a site not far from Susa."
"Go on!" Japp made a grab at a passport. "You're right, M. Poirot," he said, "but you must admit they don't look up to much, do they?"
"The world's famous men seldom do!
I myself - moi, qui vous parle - I have before now been taken for a hairdresser!"
"You don't say so," said Japp with a grin. "Well, let's have a look at your distinguished archaeologists."
M. Dupont pere declared that the deceased was quite unknown to him.
He had noticed nothing of what had happened on the journey over, as he had been discussing a very interesting point with his son.
He had not left his seat at all.
Yes, he had noticed a wasp towards the end of lunch. His son had killed it.
M. Jean Dupont confirmed this evidence.
He had noticed nothing of what went on round about him.