The possibility of new danger to the actress spurred Nick on to added concentration.
Assuming that Grantley was still in New York, in disguise, and bent upon inflicting additional injury on the woman he had once loved, where would he be likely to hide himself, and what would be the probable nature of his next move?
The detective answered his last question first, after much weighing of possibilities.
Grantley was one of the most dangerous of criminals, simply because his methods were about as far removed as possible from the ordinary methods of criminals. He had confined himself, thus far, to crimes in which he had made use of his immense scientific knowledge, surgical and hypnotic.
Accordingly, the chances were that he would work along one of those two lines in the future, or else along some other, in which his special knowledge would be the determining factor.
Moreover, since his escape, he had repeatedly called his mastery of hypnotism to his aid. That being so, Nick was inclined to believe that he would continue to use it, especially since Helga had shown herself so susceptible to hypnotic influence.
Could the detective guard against that?
He vowed to do his best, notwithstanding the many difficulties involved.
But it was not until he had carefully balanced the probabilities in regard to Grantley’s whereabouts that Nick became seriously alarmed.
As a consequence of his study of the problem, an overwhelming conviction came to him that it would be just like the rascally surgeon to have gone to Helga’s own hotel, under another name.