else: Johnny had been ambushed and they were going to get the one who was responsible. They did not even conjecture as to who it might be, because the trail would lead them to the man himself, and it mattered nothing who or what he was—there was only one course to take with an assassin. So they said nothing, but rode on with squared jaws and set lips, the seven ponies breast to breast in a close arc.
Soon they came to an arroyo which they took at a leap. As they approached it they saw signs in the dust which told them that a body had lain there huddled up; and there were brown spots on the baked alkali. The trail they followed was now single, Buck having ridden along the bank of the arroyo when hunting for Johnny, for whom he had orders. This trail was very irregular, as if the horse had wandered at will. Suddenly they came upon five tracks, all pointing one way, and four of these turned abruptly and disappeared in the northwest. Half a mile beyond the point of separation was a chaparral, which was an important factor to them.
Each man knew just what had taken place as if he had been an eyewitness, for the trail was plain. The assassins had waited in the chaparral for Johnny to pass, probably having seen him riding that way. When he had passed and his back had been turned to them they had fired and wounded him severely at the first volley, for Johnny was of the stuff that fights back and his revolvers had showed full chambers and clean barrels when Red had examined them in the bunk house. Then they had given chase for a short distance and, from some inexplicable motive, probably fear, they had turned and ridden off without knowing how bad he was hit. It was this trail that led to the northwest, and it was this trail that they followed without pausing.
When they had covered fifty miles they sighted the Cross Bar O ranch where they hoped to secure fresh mounts. As they
