"There is no certainty that it was Majendie," I replied.

"Whether it was or not is immaterial for the moment. The fact remains that some one who was anxious to get rid of incriminating evidence was so clumsy that he threw it where any one could pick it up. Not one man in a thousand would have done that, no matter what state of agitation he was in. The packet was deliberately thrown away, remember; it was not done in a moment of sudden fear."

"I am all attention to hear what theory you base upon it," I returned.

"We will begin with the wound," said Quarles. "Sir Robert Gibbs and Dr. Williams agree that it could not have been self-inflicted. Sir Robert suggested that I should try to stab myself in the same way and see how impossible it was. Remember it was a stab and a pull of the blade to one side. It was impossible for a right-handed man, difficult even for a left-handed one, but not impossible. That was the first point I made a mental note of."

"Why did you not speak of the possibility?"

"Chiefly, I think, because I was convinced that Sir Robert expected me to do so, was waiting for me to do so, in fact. He is far too cute a man not to have considered the possibility, and was prepared to prove that Hardiman was a right-handed man, as we know he was from his servant. In all probability Sir Robert knew that Bennett had to cut his master's nails. I was not disposed to give the doctor such an opening as that, although no doubt he thought me a fool for not thinking of it."

"Then we do away with the theory of suicide?" I said.

"Well, the absence of any weapon appears to do that," said Quarles. "What was the weapon? A knife of some kind, a rusty knife and rather jagged, I fancy. The wound suggested that it was jagged, and in spite of the washing my lens revealed traces of rust. Rather a curious knife to commit murder with. That was my second mental note. We had to be prepared for a curious personality somewhere in the business."

"Mr. Majendie," I said.

"He is hardly such an abnormal individual as the servant Bennett. We will consider Bennett first. His story is a straightforward one, nervously told, dramatically told. We might easily assume that imagination had much to do with that story were it not for the contents of those packing-cases. They are corroborative evidence. We may grant that the man's recent experiences have had their effect upon him, have laid bare his nerves, as it were, but since the most unlikely part of his story is true we may assume that the rest of it is. We need not go over it again in detail. The man was evidently attached to his master, and was prepared to shoot him if he exhibited signs of madness. Considering the state of his own nerves, I can believe that Bennett watched for these signs, and felt convinced of his master's madness when he spoke of a wealth of diamonds. Bennett knew they had no diamonds in their possession. He only knew of those bits of rock. So he determined to shoot Hardiman. However, I am convinced that he did not leave his cabin that night. Sleep prevented his carrying out the intention, but when in the morning he found that his master was dead—murdered—he immediately translated his intention into action, and concluded that he had done it. There was no one else who would be likely to murder him. That he should do it was natural under the circumstances. He would not look upon it as a crime. He had only carried out his instructions to the letter, as I have little doubt he has been accustomed to do for years."