A moment after, the bushes, a few yards off, parted slowly, and the dusky face became visible. For many minutes the glittering eyes gazed about, and then a look of disappointment succeeded the previous one of triumph. After remaining in silence for a short time, the savage cautiously ventured forth. He had lost sight of the men and was trying to regain the lost clue. Stepping carefully forward, he bent down and earnestly examined the ground. But he was foiled; the ground betrayed no print of footsteps. After searching vainly for some time, the baffled Indian turned and strode away, shaking his tomahawk in futile rage at the silent covert behind him.

CHAPTER V.
THE HOLE IN THE HILL.

“Total darkness down here, isn’t there?” said Kent, putting out his hand to see how wide the passage was, and finding hard walls within a foot of where he stood.

“Yas,” answered Wild Nat; “but thet’s nothin’. Foller yer nose, an’ I’ll foller you.”

The young man cautiously advanced, feeling his way, and after going some ten paces, suddenly emerged into a cavern—how large it was impossible to tell, owing to the darkness. It was evident, however, that there was somewhere a communication with the outer world, as the air was not stifling or mephitic, as usual in caves, but quite fresh and agreeable.

“Do we stop here?” asked Kent.

“Yas; I’ll have a light in about a minnit,” replied the trapper, groping about in search of some torchwood, which he soon found and lighted, revealing the size of the cave. It was a small, oval-shaped room, not more than sixteen feet in length, and proportionately narrow. On two sides there was a small recess, beyond which were several openings or chambers communicating with each other by rugged passages, some of which were several rods in length—mere rifts in the rock.

Kent amused himself with looking at the different rooms, while the trapper built a small fire, and went out to take the horses to a more secure place. In one of the chambers adjoining the first cavern was a small pool of clear, cold water on one side, evidently a living spring, for the water ran bubbling over the stones, disappearing on the other side of the cave. The curious Kent followed the passages from one cave to another until he had passed five, and then came to a large hall or room, with which the cavern terminated. After examining these several subterranean wonders as well as the dim light would permit, the explorer returned to the outer room, and sat down to await Wild Nat’s return.

It was some time before the trapper returned, and when he made his appearance his usually long face was considerably elongated.

“What is the matter?” asked his companion, noticing the hunter’s looks.