"Look here," George interrupted, "the train robbers saw a chance to rub it into the officers and they did it. That's all there is to that! They would have protected the detectives who were searching the mountains, or even a band of burglars, just the same as they did us. You know very well that such fellows have a perpetual grouch against officers of the law. The only wonder is they didn't shoot when they had the cowboys unarmed."