While Frank and Archie were unsaddling their horses, the trapper proceeded to recount their adventures, to which both Mr. Winters and old Bob listened attentively. The latter was not a little astonished to learn that the boys could so readily accommodate themselves to circumstances, and was more firm than ever in his belief that “the youngsters would make good trappers.”

Mr. Winters had, at first, been considerably alarmed at their absence; but, upon reflection, he remembered that the boys had often been in positions fully as dangerous, from which they had always succeeded in extricating themselves, and he soon fell in with the trapper’s opinion, that they would “turn up all right.” He did not think it necessary to caution them, for, from the description the trapper gave of their adventures, it was not at all probable that they would ever again be placed in a like situation.

After a hearty dinner, which Dick speedily served up, they again set out toward the mountains, which they reached about the middle of the afternoon. After riding along the edge of the willows, for half a mile, they came to a wide but very shallow stream, into which the trapper turned, and after following it for some distance, drove out on the bank and stopped.

“Here we are,” said he, as he climbed down out of his wagon. “Now, youngsters, you’re at the ole bar’s hole. But if you didn’t know it war here, you might hunt fur it till your har war whiter nor Bob’s, an’ then you wouldn’t find it, an’ that wouldn’t be no wonder neither; fur many a sharpeyed Comanche has looked an’ peeped fur it, but only one ever found it that I know of, an’ it didn’t do him no good, fur he never lived to tell of it.”

While the trapper was speaking, old Bob had dismounted from his horse, and, walking up to a thicket of bushes which grew at the foot of a high rock that overhung the bed of the stream, began pulling them aside, and finally disclosed to view an opening that appeared to lead down into the very bowels of the earth. Meanwhile, Dick had gathered some dry wood for a torch, and, after lighting it, he backed down into the hole and disappeared, followed by Frank and Archie, who were impatient to see the inside of the cave which had so often served their guide as a secure retreat from his enemies. The passage was long and winding, and it was with considerable difficulty that the boys worked their way into it. Besides, it was in some places so narrow that they could scarcely squeeze themselves through it. The trapper, however, worked his way along with a celerity that was surprising, and soon both he and the torch were out of sight, and the boys were left in pitch darkness. But there was little danger of their being lost in that narrow passage, and they crawled along as rapidly as possible, until at length Archie, who was leading the way, stopped, and began to rub his elbows and knees, which had received some pretty severe scratches from the sharp rocks.

“I say, Frank,” he exclaimed, “how do you suppose Dick ever squeezed his broad shoulders through a narrow place like this? What’s that?” he added, in a terrified voice, as they heard a savage growl, which seemed to sound directly over their heads.

Frank did not stop to answer, but throwing himself on his hands and knees, began to make the best of his way out of the passage, closely followed by his cousin, who urged him to go faster. They had not gone far when they were startled by the report of a rifle, which was followed by a roar that echoed and reëchoed through the cave like a heavy clap of thunder. What it was that had uttered that roar the boys were unable to determine; but they knew, by the report of the trapper’s rifle, and the sounds of a fierce struggle that came faintly to their ears, that Dick had found his old harboring-place occupied by some animal which did not feel disposed to give up possession; and they got out of the passage in much less time than it had taken them to get into it. When they reached the open air, the old trapper, who had heard the report of his “chum’s” rifle, threw himself on his hands and knees, and crawled into the cave, followed by Mr. Winters. The boys at once ran to the wagon after their weapons, but by the time they had secured them, the fight was ended, and Dick made his appearance at the mouth of the passage. But he did not look like the man who had gone into that cave but a few moments before. His hunting-shirt and leggins were torn almost into shreds, his arms were bare to his shoulders, and were covered with wounds that were bleeding profusely. The boys were horrified; but their fears that the trapper had received serious injury were speedily set at rest, for he smiled as if nothing had happened, and exclaimed:

“Now you see what it is to be a trapper, youngsters. I shall allers think that ’ar cave has a good name, fur if me an’ Useless didn’t find the biggest grizzly bar in thar we ever sot eyes on, then thar aint no more beaver in the Missouri River.”

As he spoke, he divested himself of what remained of his hunting-shirt, and walked down to the creek to wash the blood off his hands and face, in which he was assisted by Mr. Winters. While this was going on, old Bob crawled out of the cave, carrying two cubs in his arms, which he presented to the boys, saying: