THE MYSTERIOUS AFFAIR AT STYLES
In her soft grey frock, with white ruffles at the wrists falling over her slender hands, she looked very beautiful. When she chose, however, her face could be sphinx-like in its inscrutability. She was very silent, hardly opening her lips, and yet in some queer way I felt that the great strength of her personality was dominating us all.
And little Cynthia? Did she suspect? She looked very tired and ill, I thought. The heaviness and languor of her manner were very marked. I asked her if she were feeling ill, and she answered frankly:
"Yes, I've got the most beastly headache."
"Have another cup of coffee, mademoiselle?" said Poirot solicitously. "It will revive you. It is unparalleled for the mal de tête." He jumped up and took her cup.
"No sugar," said Cynthia, watching him, as he picked up the sugar-tongs.
"No sugar? You abandon it in the war-time, eh?"
"No, I never take it in coffee."
"Sacré!" murmured Poirot to himself, as he brought back the replenished cup.
Only I heard him, and glancing up curiously at the little man I saw that his face was working with suppressed excitement, and his eyes were as green as a cat's. He had heard or seen something that had affected him strongly—but what
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