At this moment, the reverberations of a prodigious blow upon the door outside echoed through the room, “bang, bang—bang, bang, bang—bang.”

Unaccountably startled, as if at the hearing of some portent, the professor stood rooted to the spot for a moment, and then was about to leap to the door, when the simulacrums before him sprang to their feet and with a tremendous stamping, smote their wooden legs upon the floor, “stamp, stamp—stamp, stamp, stamp—stamp.”

The professor stared at the twelve mutes. There were their immobile faces, as wooden as their wooden legs, wearing their perpetual grin, but the westering sun shone on their eyes and there he saw an abject, grovelling fear, dreadful to behold, the master passion of twelve souls, slaves to some mysterious will which had just made itself manifest out of the unseen. By what means the will had gained this ascendancy, the terrible disfigurements of their remnants of bodies told only too well, and he who ran could read the utter prostration before the power which in their lives had been the greatest and most terrible in the universe. Again, far off in a distant corridor of the building, slowly rumbled to them: “knock, knock—knock; knock, knock—knock,” and the twelve unfortunates, like so many automatons, gave token of their obedience. They had been warned to keep the secret.

And so was foiled the attempts of the learned anthropologists to hold converse with these rudimentary beings. The alphabet of such elaborate devisings went for naught. Never did the twelve persons in the state of primitive culture get further than the letter C: “knock, knock—knock; knock, knock—knock.”

What Befell Mr. Middleton Because of the Fifth Gift of the Emir.

“I am at a loss to understand,” said Mr. Middleton, “why you have entitled the narration you have just related, ‘The Pleasant Adventures of Dr. McDill.’ For to my mind, they seemed anything but pleasant adventures.”

“How so?” asked the emir. “Is it not pleasant to thwart the machinations and defeat the evil intentions of the villains such as composed the confederacy that sought the doctor’s life? Does there not reside in mankind a sense of justice which rejoices at seeing meted out to wrong-doers the deserts of their crimes?”

To which Mr. Middleton replying with a nod of thoughtful assent, after a proper period of rumination upon the words of the emir, that accomplished ruler continued:

“Despite the boasted protection of the law, how often is a man compelled to rely for his protection upon his own prowess, skill or address. There are many occasions when right under the nose of the police, one saves himself by the resort to physical strength, weapons, or the use of a cajoling tongue. Theoretically, Dr. McDill was amply protected by the mantle of the law. In reality, it was man to man as much as if he had met his foes in the Arabian desert, with none but himself and them and the vultures. Do you go armed?”

“No,” replied Mr. Middleton, with a flippant smile; “but I can go pretty fast, and that has heretofore done as well as going armed.”