"Silence!" I interrupted. "Another word and you are a dead man!" A hasty glance had shown me that the street was deserted. I produced my pistol, therefore, as I spoke and presented it to his breast. The negro started back, rolling his eyes like a maniac, but he spoke no word. He was shivering with fear. I smiled and returned the weapon to my pocket. Thereupon I gripped his arm and muttered in his ear: "Proceed!" Uttering a sort of groan, he set off slowly for the Rue Saint Denis. "Quicker!" I commanded. He increased his pace. We turned the corner, and a smart walk brought us quickly to the Rue D'Enghien. Turning into that street the negro stopped presently before the door of a large three-storied house, whose every window was closely shuttered. "We have arrived, monsieur," he muttered in a hollow voice. "You have a latch-key, perhaps?" I asked. "Yes." I looked steadily at the house for a moment or two, then curtly ordered my companion to proceed, still, however, retaining a firm hold of his arm. Five minutes later we came to the Faubourg Poissonnière. Hailing a _fiacre_, I invited Jussieu to enter, and quickly took a seat beside him. "The Hotel de Louvre!" I shouted to the driver, and we were off. The negro was so still and docile that I began to suspect him of meditating some plan of escape. Producing my pistol, I thrust the muzzle into his side and cocked it with a loud click. "Death is very near to you, Jussieu!" I said. "For God's sake, monsieur!" he groaned. "Sit very still, Jussieu. It has a hair trigger, and my hand is trembling. I am remembering that it was you who pierced my fingers with needles and seared my foot with branding irons!" "Mercy, mercy! Forgive!" he wailed. His terror was so sharp and evident that I could not withstand the temptation to play upon it. "Why should I pardon you?" I demanded. "What mercy did you show to me--you infamous wretch?" "M'sieur, I was but the tool of others. Do not kill me. For Christ's sake put up your pistol." "On the contrary, Jussieu," I said in a terrible voice. "Unless you consent to obey me implicitly, you shall die this instant, like the dog you are!" "Mercy, mercy!" he cried. "I shall do anything you require--anything." "Will you betray your master?" "Yes, yes; only, for God's sake, put up your pistol!" For answer I thrust the muzzle even harder into his side. "Now," said I, "tell me!" But he uttered a strangled cry.