“I am not saying anything about that.”
“I see. Your idea is to set a trap for me. Well, let’s see if you can catch me.”
Laughing softly as though he had heard a good joke the chemist took out a microscope and put the blood-spotted paper under its powerful lens.
As he spent only a comparatively few minutes in scrutinizing the spots of blood, it was fair to presume that their characteristics were so distinctly defined as to give him little trouble in determining from what animal they had come.
Nick Carter had watched him throughout, and a grim smile flickered about his lips as he saw the look of certainty and satisfaction that came over the professor’s face.
When the latter finally looked up, the detective inquiringly, said:
“Well?”
The professor laughed softly, then said:
“If your purpose here is to try me and see if you can trip me up, I’ll tell you what I will do.”
“What?”