Both lads were soon breathing heavily, for they found the uneven nature of the rock-strewn ground to be very much against them. But, fortunately, neither chanced to fall, and thus delay their flight and, while the oncoming grizzly was yet some little distance in their wake, they managed to reach the hospitable tree that offered them hope of a refuge. "Up as fast as you can, Roger!" urged Dick. Roger would not have stirred an inch, only he saw that his cousin was already clambering as fast as he could go. Impulsive, headstrong and even careless Roger might be at times, but he was no coward, and he would not climb to safety, leaving his chum to face any peril from which he was freed. They managed to get fairly well lodged in the bare branches of the mountain oak before the pursuing animal arrived. The bear stood up on his hind legs and tried to reach their dangling moccasin-covered feet, meanwhile snarling savagely, and manifesting the most determined desire to avenge his injuries. "At any rate," said Roger, "we both hit him, Dick, for you can see he is bleeding from two wounds. Oh! why did I let my gun fall when I stumbled that time? If I had it here with me now I could soon fix that fellow!" "Then you must leave that to me this time, Roger," remarked the other, who had managed to slip the strap of his gun over his shoulder as he drew near the tree, so as to have both hands free for climbing--and he had certainly needed them, too. Dick now began to load his gun, meanwhile watching the actions of the furious bear. The grizzly was trying to gain lodgment among the lower limbs of the tree that had offered the fugitives an asylum; but he did not seem to know how to go about it, or to utilize those long, sharp claws that had been given to him by Nature more as a means of offense than for climbing purposes. Several times he fell back heavily, only to give vent to his ferocity in sullen roars. Finally Dick, having sent the patched bullet home with his ramrod, began to prime the pan of his long gun, so as to be ready to make use of the weapon. CHAPTER III THE TERROR OF THE MOUNTAINS "MAKE sure work of him, Dick!" Roger said, in trembling tones, as he saw the other draw back the flint-capped hammer of his gun, showing that it was ready for business. The grizzly was still displaying all the signs of furious anger, and there seemed some danger that he might manage to gain lodgment among the lower limbs of the tree. "No hurry, Roger! And, another thing, I've concluded that, since you brought this trouble on our heads by that unlucky shot, you should be the one to finish our enemy, not me!" "Oh, Dick, do you really mean it?" cried Roger, filled with delight. "I've been saying over and over again that some day I hoped to be able to kill one of these monsters that the Indians fear so much. Do you intend to lend me your gun, and let me finish him?"