“It was quite easy to see what had happened.  He had walked quickly out on the landing with the case-opener in his hand.  His foot had caught in the torn matting and he had pitched head foremost down the stairs, still holding the case-opener.  He had fallen so that his head had come down on the upturned edge of the axe-blade; he had then rolled over and the case-opener had dropped from his hand.

“I lit a wax match and stooped down to look at him.  His head was in a very peculiar position, which made me suspect that his neck was broken.  There was extremely little bleeding from the wound; he was perfectly motionless; I could detect no sign of breathing; and I felt no doubt that he was dead.

“It was an exceedingly regrettable affair, and it placed me, as I perceived at once, in an extremely awkward position.  My first impulse was to send the caretaker for a doctor and a policeman; but a moment’s reflection convinced me that there were serious objections to this course.

“There was nothing to show that I had not, myself, knocked him down with the case-opener.  Of course, there was nothing to show that I had; but we were alone in the house with the exception of the caretaker, who was down in the basement out of ear-shot.

“There would be an inquest.  At the inquest, inquiries would be made as to the will which was known to exist.  But, as soon as the will was produced, Hurst would become suspicious.  He would probably make a statement to the coroner and I should be charged with the murder.  Or, even if I were not charged, Hurst would suspect me and would probably repudiate the assignment; and, under the circumstances, it would be practically impossible for me to enforce it.  He would refuse to pay and I could not take my claim into Court.

“I sat down on the stairs just above poor John’s body and considered the matter in detail.  At the worst, I stood a fair chance of hanging; at the best, I stood to lose close upon fifty thousand pounds.  These were not pleasant alternatives.

“Supposing, on the other hand, I concealed the body and gave out that John had gone to Paris.  There was, of course, the risk of discovery, in which case I should certainly be convicted of the murder.  But if no discovery occurred, I was not only safe from suspicion, but I secured the fifty thousand pounds.  In either case there was considerable risk, but in one there was the certainty of loss, whereas in the other there was a material advantage to justify the risk.  The question was whether it would be possible to conceal the body.  If it were, then the contingent profit was worth the slight additional risk.  But a human body is a very difficult thing to dispose of, especially to a person of so little scientific culture as myself.

“It is curious that I considered this question for a quite considerable time before the obvious solution presented itself.  I turned over at least a dozen methods of disposing of the body, and rejected them all as impracticable.  Then, suddenly, I remembered the mummy upstairs.