“But my dear sir!” he exclaimed, “the thing is impossible! Haven’t I just told you that he has been watched continuously?”

“I can only judge by the appearances that I find,” I answered; and, seeing that he was about to offer fresh objections, I continued: “Don’t let us waste precious time in discussion, or Mr. Graves may be dead before we have reached a conclusion. If you will hurry them up about the coffee that I asked for some time ago, I will take the other necessary measures, and perhaps we may manage to pull him round.”

The rather brutal decision of my manner evidently daunted him. It must have been plain to him that I was not prepared to accept any explanation of the unconscious man’s condition other than that of morphine poisoning; whence the inference was pretty plain that the alternatives were recovery or an inquest. Replying stiffly that I “must do as I thought best,” he hurried from the room, leaving me to continue my efforts without further interruption.