I told him of Poirot’s intense excitement on hearing that Dr. Bauerstein had been at Styles on the fatal night, and added:
“He said twice: ‘That alters everything.’ And I’ve been thinking. You know Inglethorp said he had put down the coffee in the hall? Well, it was just then that Bauerstein arrived. Isn’t it possible that, as Inglethorp brought him through the hall, the doctor dropped something into the coffee in passing?”
“H’m,” said John. “It would have been very risky.”
“Yes, but it was possible.”
little man, divided between annoyance and amusement. He was so tremendously sure of himself. As though he read my thoughts, he nodded gently.
“Oh, yes, mon ami, I would do what I say.” He got up and laid his hand on my shoulder. His physiognomy underwent a complete change. Tears came into his eyes.