My annoyance was quickly changed to concern. Poirot was lying back across the rude couch, his face horribly convulsed. Beside him was the empty cup. I rushed to his side, then dashed out and across the camp to Dr. Ames's tent.
"Dr. Ames!" I cried. "Come at once."
"What's the matter?" said the doctor, appearing in pyjamas.
"My friend. He's ill. Dying. The camomile tea. Don't let Hassan leave the camp."
Like a flash the doctor ran to our tent. Poirot was lying as I left him.
"Extraordinary," cried Ames. "Looks like a seizure—or—what did you say about something he drank?" He picked up the empty cup.
"Only I did not drink it!" said a placid voice.
We turned in amazement. Poirot was sitting up on the bed. He was smiling.
"No," he said gently. "I did not drink it. While my good friend Hastings was apostrophizing the night, I took the opportunity of pouring it, not down my throat, but into a little bottle. That little bottle will go to the analytical chemist. No"—as the doctor made a sudden movement
