"I forbid you," he cried. "If you do this thing, I will never see you again as long as I live. You are destroying my honor. I refuse to let you do it. Stop!"
The girl hesitated, and Hartmann swore a great oath. "Take her out of here, Mayer," he cried. "She'll never speak, as long as her husband is present to dissuade her. Up with her to the laboratory. She'll talk there, quick enough."
"No!" Duvall staggered toward her. "You shall not." His movements were slow and uncertain, due to the blinding pain in his eyes, and his stiffened, nerve-racked limbs. Hartmann pushed him aside angrily. "Be quiet," he growled. "Let the woman alone."
Meanwhile Hartmann's companion had torn away the strap which bound Grace to the wall and was leading her to the door. Her husband's efforts to detain her, weak and uncertain, were easily frustrated by Hartmann. In a few moments the door had swung shut upon the detective, and she was being led up the steps to the room above.
Here she fell into a chair, and looking about, saw huddled on a couch in the far corner of the room a little, bent old man, who sat with his white head bowed upon his breast, his hands tied behind his back. Hartmann went over to him and unfastened his bonds. "You will be happier in a moment, my friend," he laughed. "This lady is going to set you free."
Dufrenne—for it was he—sprang to his feet. "How?" he demanded. "How?" As he spoke, he crossed the room, his eyes gleaming, and faced Grace as she sat in the chair.
"Wait and see, old man," said Hartmann, roughly. "Stand aside, please." He pushed Dufrenne impatiently away. "Now, young woman, where is the ivory snuff box?"
Grace raised her head to reply, when the little old Frenchman turned to her, pale with anger. "No!" he shouted, starting forward. "You shall not do this thing. Would you be a traitor to France!"
Grace looked at him and shuddered. His face was quivering with emotion—his eyes burned with piercing brightness, he seemed about to spring at her, in his rage. In a moment Hartmann had turned on him. "Be quiet!" he roared. "I want no interference from you. Mayer!" He pointed a trembling forefinger at the old Frenchman. "Take this fellow away."
Mayer took Dufrenne by the arm and twisted it cruelly. "No nonsense, now!" he growled, thrusting the old man toward the couch upon which he had been sitting. "Hold your tongue, or it will be worse for you." Dufrenne resisted him as best he could, but his age and feebleness rendered him helpless. He sank upon the couch, with tears of anger starting to his eyes.