It was the crisp chill of an early October evening; in the still air the dead leaves came rustling down with a soft sound like whispers, while the crickets chirped a cheery welcome from the waiting earth. Over the treetops a big yellow hunter's moon was rising; its comical face grinning good-naturedly. It looked down on the dark outlines of a large barn standing in the shadow of a tall tree and the grin widened perceptibly. Evidently something was...