Yet there had been the lights of a car, and after the lights had been extinguished Casey had listened rather anxiously for sound of the motor and had heard nothing at all.

The most powerful, silent-running car on the market would have made some noise in traveling through that sand and up and down the washes that seamed the mountain side.

Casey would have heard it--he had remarkably keen hearing.
"And that's darn funny," he muttered, when he was perfectly sure that there was no car, that there could never have been a car on that trackless ridge.

"That's mighty damn funny! You can ask anybody.".