"There are such things as tablets," said the doctor, "or the poison may have been in the food he has eaten to-night."

"Exactly," Quarles snapped irritably.

The doctor smiled; he had certainly scored a point and was evidently pleased.

"Besides, Professor, you are a little previous with your questions. This isn't the inquest, you know; we haven't got through the post-mortem yet."

"I generally form an opinion before the inquest," said Quarles as he looked at each glass in turn and stirred the contents of the ash-tray with a match.

"You must often make mistakes," remarked the doctor. "I propose having the body moved to the bedroom; there is nothing else you would like to look at before I do so?"

"Thanks, doctor, nothing," said Quarles with a smile which showed that he had recovered his lost temper.

After the removal of the body the doctor departed, fully convinced, I believe, that the professor was a much overrated person.

"Well, Wigan, shall I tell you what the result of the post-mortem is likely to be?" said Quarles.

"If you can. Remember you have not heard what I have to say yet."