And such was the Casey Ryan nature that he made no attempt to solve the problems which Mack Nolan had calmly reserved for himself.
He did not dream, for instance, that Mack Nolan had watched him load the stuff into Smiling Lou's car.

He did know that an unobtrusive Cadillac roadster was parked at the next campfire.

It had come in half an hour behind him, but the driver had not made any move toward camping until after dark.

Casey had glanced his way when the car was parked and the driver got out and began fussing around the car, but he had not been struck with any sense of familiarity in the figure.
There was no reason why he should.

Thousands and thousands of men are of Mack Nolan's height and general build.