Suddenly the still air was pierced by a wild shout. It was the “coyote yell,” of the Pony Express Rider coming from the west. Seemingly in the same moment, Cal hurried round the corner of the cabin, leading one of the wiry half-breed horses by the bridle. The man from within the building came through the door and peered in the direction of the sound. The other two were still absent hunting among the foothills.