ative that Dr. Hartmann should
not know that the supposed Mr. Brooks and herself were anything but the
most chance acquaintances.

"Doctor," she cried out, "what are you doing?"

"It seems that Dr. Hartmann has suddenly lost his senses, Miss
Ellicott," exclaimed Duvall angrily.

"Quite so, my friend," said the doctor, sarcastically. "Just as our poor
friend Seltz lost his. Don't try anything like that," he snarled,
suddenly, as Duvall attempted to release his arm with a sudden twist. "I
have a few questions I desire to ask you, Mr. Brooks."

"Questions? What are they?"

"I cannot possibly ask them here, in the presence of Miss Ellicott.
Perhaps you will oblige me by stepping into my office for a few moments
when we arrive at our destination."

"I can spare you five minutes," said Duvall, sullenly. He could not help
remembering Dufrenne's advice, and regretted bitterly that he had not
followed it. He had been prepared for almost any contingency. As he left
the Minister's house, his hand clutched a revolver in the pocket of his
coat. There seemed no way in which Hartmann could prevent him from
taking Grace to the railway station. He felt so sure of this that he
became overconfident. One moment only had he been off guard--the moment
when, with his back to Hartmann, he had stepped into the cab. And the
latter, seizing upon that instant's slip, had turned the tables upon him
so completely that he cursed himself in his chagrin. Here he was, headed
for Dr. Hartmann's house, on the outskirts of the town. Once there, the
latter's attendants could easily overpower him and carry him into the
place helpless. There seemed no possible means of escape. He determined
to brazen the matter out, and meet Hartmann on his own ground.
Resistance would at this juncture be useless. He congratulated himself
that Grace had, by her cleverness, not shown her hand. The doctor
evidently did not suspect, at least not very strongly, that she was
anything other than she seemed--a patient. He knew he would be searched,
and hoped that the place of concealment of the snuff box would defy even
Hartmann. After that, he would demand his release, and rely upon Mr.
Phelps to get it for him.

He lifted his head and saw that they were at the house. Without
loosening his hold upon Duvall's arm, the doctor called to the
chauffeur, "Ring the bell." The latter did so. In a moment, a servant
appeared. "Send Max and Rudolph here," cried Hartmann, and presently