内容简介：
Why, Dave, what are you going to do with that revolver? "Phil and Roger and I are going to do some target shooting back of the barn," answered Dave Porter. "If we are going to try ranch life, we want to know how to shoot." "Oh Well, do be careful " pleaded Laura Porter, as she glanced affectionately at her brother. "A revolver is such a dangerous thing " "We know how to handle one. Phil has been painting a big door to represent a black bear, and we are going to see if we can do as well with a revolver as we did with the rifle." "Do you expect to shoot bears on the ranch? I didn't see any when I was out there." "We don't expect to see them around the house, but there must be plenty of game in the mountains." "Oh, I presume that's true. But I shouldn't want to hunt bears-I'd be afraid," and Laura gave a little shiver.