Again he started off, and this time found himself skirting a series of loose rocks of various sizes. He was going down hill and occasionally loosened a round stone with his foot and sent it crashing to a thicket of cedars below. A hundred yards were covered when Dave heard the cry again. Now it was plainer, and it sounded a little like a call for help. "Maybe Todd is in trouble," he mused. "Perhaps that elk got up and attacked him!" And with this thought in his mind he set off on a dog-trot in the direction of the voice he had heard. It was dangerous among the loose stones, and once Dave went down and rolled over and over, coming pretty close to hitting his face and shooting off his rifle. As he picked himself up he heard a call quite plainly. "Help! help! Somebody help me!" "It must be Todd!" burst from the youth's lips, and now, in spite of the danger, he bounded from rock to rock down the slope. The call came from the left, and thither he made his way, halting in dismay as he came out on a little cliff. At the foot of the cliff he saw the man who had uttered the call for aid. It was Hank Snogger. He was having a fierce face-to-face tussle with a big bear. His gun was on the ground and so was his sombrero, and in his hand he held his hunting knife. As Dave viewed the scene in horror, the bear made a pass with one forepaw and sent the hunting knife whirling from the cowboy's grasp. Then the bear closed in, as if to hug Snogger to death! CHAPTER XXX TO THE RESCUE----CONCLUSION It was a time for quick action and nobody realized this more than did Dave, as he saw the shaggy brute close in on the cowboy. One squeeze of those powerful forepaws and Hank Snogger's ribs would be crushed in and he would be killed. With hardly a second thought concerning what he was doing, Dave raised his rifle, took quick aim and fired at the bear. Then he fired a second shot, and followed this up with a third. At the first shot the bear dropped his hold and swung around, uttering a loud snort of pain as he did so. He had been struck in the back, for the youth had not dared to aim too close to Snogger. Then, thinking that he had been hurt by the man before him, the animal made a leap and sent the cowboy sprawling. As he stood over his victim the second shot hit him in the hind quarters, causing him to whirl around. Then the third shot landed in his side, and made him double up like a ball and roll over and over. [Illustration: Dave seized a fair-sized stone and hurled it at the bear. --Page 293.] "Kill him! Kill him!" came faintly from Hank Snogger. "Don't let him git at me ag'in!" Dave tried to fire another shot, but for some reason then unknown the rifle refused to work. The bear was rolling over and over and threatened each instant to roll on the cowboy and crush him. Snogger was so weak he was unable to save himself or do anything in his own defense.