“To the best of my recollection, Miss Flora,” said Parker, “but I fancy you used

the word evening instead of night.” Then, raising his voice in a somewhat

theatrical fashion: “Very good, miss. Shall I lock up as usual?”

 

“Yes, please.”

 

Parker retired through the door, Flora followed him, and started to ascend the

main staircase.

 

“Is that enough?” she asked over her shoulder.

 

“Admirable,” declared the little man, rubbing his hands. “By the way, Parker,

are you sure there were two glasses on the tray that evening?

 

Who was the second one for?”

 

“I always bring two glasses, sir,” said Parker. “Is there anything further?”

 

“Nothing. I thank you.”

 

Parker withdrew, dignified to the last.

 

Poirot stood in the middle of the hall frowning. Flora came down and joined us.

 

“Has your experiment been successful?” she asked. “I don’t quite understand, you