Then came the greatest surprise of all. The man, who had spoken no word the whole time, thrust a heavy .45 revolver into his trouser-pocket. To permit this being done the eight-inch barrel had been sawed off five inches short, ruining the gun for ordinary use, but making it particularly handy and light for close work. This action convinced Larkin that the man in the mask was not only willing that he should escape, but was actually determined that the event should occur. He also knew that he could count on the support of this ally in the final moment when the four men must fight it out two and two. Whether this sudden change of aspect was the result of a determination by a minority of the rustlers not to let the execution take place, or whether by some miraculous means one of his own friends had succeeded in joining the organization, he could not determine, although he tried to sound the man in the mask when the others were busy with their horses. His only reply was a low hiss commanding silence. A quarter past the hour found them on their way, the ponies picking their path gingerly over the bad ground until they reached the range. Here the three rustlers drew up short, for in the distance could be seen the twinkling of a camp-fire. "One of the Bar T punchers," said Joe; "but I reckon he won't hear us." For half a mile further they walked their horses, and then urged them to a trot in the direction of the river whose tree-lined banks they had seen late in the afternoon. They paused only once in this place, and then to cross a small stream that lay in their path. As he rode Larkin worked his arms cautiously back and forth until he felt the rotten rawhide give, and knew that a single violent motion would free him entirely. But he refrained from making that motion, feeling certain that the man in the mask would give the signal when the time was ripe. At last they discerned the loom of the trees against the low northern sky and pulled their horses to a walk, until they arrived directly underneath a big cottonwood, which stood in sinister readiness. "Here's your last chance," said Parker in a low voice. "If you swear as we have told you, you can go free now. We take a man's word out here." "Never," replied Larkin firmly. "Don't waste time talking." "Shore not," rejoined the other. "We always grant a man's last request. Come on, boys, let's finish this thing quick." He had hardly spoken when from the distance came the sound of rapid revolver firing, mingled with the wild shouts of men. For a few moments the drama beneath the cottonwood came to an abrupt halt. "By gum!" cried Joe, "the Bar T punchers have found the boys and there's the devil to pay back there. Lively, now."