Instantly the camp became a scene of bustle and excitement. While the men were making ready, Burke turned to Matt.

"I don't know how you ever got through in the time you did, King," he observed. "That machine of yours must be a jim-dandy."

"It's the best ever," answered Matt.

"Tell me about your trip—just the main points."

Matt began with the red roadster and the trouble he had had with the two men who were traveling in it.

"Dangerfield has a heap of friends through this part of the country," commented Burke. "There's a whole lot of people, you know, who don't think smuggling Chinks into the United States is very much of a crime. Dangerfield must have been expecting something to go crossways in Phœnix and had some of his misguided friends watching McKibben. But go ahead."

Matt told about the smoke-signals, and how they were passed on along the rim of Castle Creek Cañon. The stern lines deepened in the sheriff's face.

"Dangerfield was sure doing everything he could to make a safe getaway into Mexico," said he. "They say he has fifteen men, whites and half-breeds, working his underground railroad. I'm willing enough to believe about those smoke-signals. The two in the red automobile sent word ahead that you and your chum were coming. Well, did that make any trouble for you, King?"

Matt told about the boulder which had been rolled down the side of the notch, and which had crippled Clipperton's machine and put him out of the running; but he did not say a word about the half-breed.

The sheriff was deeply interested in Matt's recital. By that time the rest of the men had finished getting ready, and were pushing around Matt and listening to his experiences. As he went on with the incident on the divide, and the way he had escaped from the man and the dog, several rough hands reached over to give him an admiring tap on the shoulder.