"Duty cannot consider sentiment!" said Mr. Barnes, though in his heart he was already sorry that he suspected, and that he had followed up his suspicion.
"Leon now troubles himself because he does not known who his father is," continued the Doctor, without noticing what Mr. Barnes had said. "It would be far worse for him to know his father, and then believe him to be a murderer, and even that he had himself supplied a clue against him. It would be too horrible! Agnes too would suffer. She might abandon her love, from a sense of duty to her father, but her heart would be broken, and all the bright promises of her youth crushed. No! No! It must not, it shall not be!" The Doctor became excited towards the end, and Mr. Barnes was startled at his manner.
"What will you do?" he asked, feeling constrained to say something.
"Place myself beyond the reach of the law, as I said before. But not by suicide, as you suggested. Do you not see that my only reason for avoiding the trial which would follow your accusation is, that I do not wish the knowledge to reach those three persons, in whose welfare my whole heart is centred? Suicide would be a confession of guilt. It is the hackneyed refuge of the detected criminal who lacks brains, and of the story writer, who, having made his villain an interesting character, spares the feelings of his readers by not sending him to prison, or to the gallows. Nor do I contemplate flight, because the effect would be the same."
"Then how do you purpose evading the law?" Mr. Barnes was intensely interested, and curious to know the plans of this singularly resourceful man.
"The law cannot reach the insane, I believe," said the Doctor, calmly.
"You surely do not suppose that you can deceive the experts by shamming madness?" asked Mr. Barnes, contemptuously. "We are too advanced in science, in these days, to be baffled long by malingerers."
"Observe me, and you will learn my purpose!"
Dr. Medjora went to a closet and returned with a hammer, a large staple, and a long chain. Mr. Barnes watched him closely, with no suspicion of what was to follow. The Doctor stopped at a point immediately opposite to the door, and stooping, firmly fastened the chain to the floor by nailing it down with the large staple, which was long enough to reach the beam under the boarding. He then stood up again. Taking a hypodermic syringe from his pocket, and also a small phial, he carefully filled the barrel, and was about to inject the fluid into his arm, when Mr. Barnes ejaculated:
"I thought that you said you would not commit suicide?"