"I didn't know any of 'em," asserted Baldy. "Not that I got any too close," he added, grimly. "They sure can ride, even if they don't have our style." "I'm not sure," remarked Russ, as he put away the camera which he had had no chance to use after filming the start of the cowboys, "I'm not sure, but I think I recognized one of the fellows as the chap who was at Rocky Ranch when we arrived there." "Then he has others with him," said Mr. Pertell. "Evidently." "And they will probably try to do us some more mischief," went on the manager. "We still have several important films to make, and if they try to steal our ideas and get the pictures we go to so much trouble to make we may as well give up." "Don't you do it!" cried Baldy Johnson. "Don't you do it! We'll get after these fellows the first thing in the morning, and round 'em up good and proper." "That's what we will!" cried his companion. "Whoop-ee for the round-up!" "We'll pay 'em for startin' that fire," went on Baldy. "Yes, and for stampedin' those cattle, too," added Buster Jones. "Do you think they did that?" Mr. Pertell asked, quickly. "I wouldn't be a bit surprised," declared Buster. "If they was mean enough to start a fire to spoil the picture they wouldn't stop at a little thing like stampedin' a bunch of cattle. I'm sure they done it." "Then all the more reason for runnin' 'em out of the country!" decided Baldy. "We'll get on the trail early in the mornin', boys." "We're with you!" cried the others. The camp, which had been made on the side of the creek where refuge had been taken from the fire, was soon in order. The cook wagon and supplies had been sent far away from the scene of the blaze when it was started, and it had come up by a different trail. Soon with tents erected, and with the sleeping wagon for the ladies in readiness, quiet settled down over the scene. Believing that it was more necessary to capture or drive out of that section the rivals who were endeavoring to get ahead of him, Mr. Pertell decided not to make any more films until after the chase. Preparations for this were soon under way, next morning, and, save for a small guard of cowboys left in camp, all the men riders went after the suspected ones. Mr. DeVere remained with his daughters. Of course Russ went along to make the pictures. It was some time before the searchers got on the proper trail. They followed one or two false ones at first, but finally were set right, and then they rode furiously. "There they are!" cried Baldy, who had taken the lead. This was after a hasty lunch. He pointed to a group of fleeing horsemen. "After 'em!" yelled Bow Backus. "They shan't get away this time!" cried Buster Jones. And they did not. Ride as the fleeing ones might, they were no match for their pursuers, and after a short chase, which Russ was able to get on the film, the fugitives were surrounded. "Surrender!" yelled the cowboys of Rocky Ranch as they rode down their rivals.