“Dorcas, will you tell Manning to come round and speak to me here.”
“Yes, sir.”
Dorcas withdrew.
We waited in a tense silence. Poirot alone seemed perfectly at his ease, and dusted a forgotten corner of the bookcase.
The clumping of hobnailed boots on the gravel outside proclaimed the approach of Manning. John looked questioningly at Poirot. The latter nodded.
“Come inside, Manning,” said John, “I want to speak to you.”
Manning came slowly and hesitatingly through the French window, and stood
tray with a spirit lamp and a small saucepan on it. A small quantity of a dark fluid remained in the saucepan, and an empty cup and saucer that had been drunk out of stood near it.
I wondered how I could have been so unobservant as to overlook this. Here was a clue worth having. Poirot delicately dipped