"Come back!" he shrieked. "Come back! Stop! Stop!" he cried, as though addressing a living thing. It ceased to roll, and with a cry of joy he found that he could still reach it. Again he slowly worked it towards him. Inch by inch he managed the coveted phial, until at last he assumed another position. Springing up from the floor he reached backward with one foot and touched it.
"Now it is mine! Mine! Mine!" His voice was shrill, and there was a passionate tone of exultation that smote Mr. Barnes to the heart. It was terrible to stand by and see the desperate effort which this man made to accomplish that from which all men shrink in horror. Slowly the Doctor proceeded with his task, until at last he was able to reach the phial with his hands. Swiftly stooping, as a hawk descends upon its prey, he grasped the little bottle.
"Ha! Ha! Ha! I have it! It is mine! The Wizard never fails!"
His laugh of joy had scarcely died away, before he uttered a most terrific shriek, and threw the phial from him, crying:
"Empty! Great God! It is empty!"
He stood silent and motionless for a moment. Then his eyes turned in the direction of Mr. Barnes, and he glared at him in such a way that the detective felt uncomfortable. Suddenly he burst forth with a tirade of abusive language.
"You! You are the cause of all this! You are the prying miscreant that has made all my trouble! I will have your life! I will drag you into the crypt of my great ancestor, and tear out your heart on the stone of sacrifice that still exists in there!"
He dashed forward with such force that the chains, reaching their limit suddenly, jerked him back so violently that he fell. As he did so his hand chanced to touch the hammer, which he had laid aside while trying to secure the bottle. With a shriek of joy that made Mr. Barnes shiver, he sprang up, holding the hammer aloft.
"I am chained! Chained! But you shall not escape! Take that!"
Swiftly he hurled the hammer, but Mr. Barnes, suspecting his purpose, dropped to his knees, and the missile went harmlessly over his head.