Kopf grew pale.

Indeed, his pallor was out of all proportion with the affair, which Maurice took to be no more than a comedy.
"Brothers," he said, huskily, "he will not dare." "Don't you doubt it for a moment," interrupted Maurice, taking out the revolver and fondling it.

"Any interference will mean one or more cases for the hospital.

Come, I'm not the police," to Kopf.

"I am not going to hurt you.