“You are sure it was tetanus?”

“Dead sure.”

“It couldn’t have been a case of strychnine poisoning, for instance?”

“No, Monsieur Poirot. I see what you’re getting at. But it was a clear case of tetanus.”

“Did you not inject antiserum?”

“Certainly we did,” said the doctor dryly. “Every conceivable thing that could be done was tried.”

“Had you the antiserum with you?”

“No. We procured it from Cairo.”

“Have there been any other cases of tetanus in the camp?”

“No, not one.”