"The man who showed us where to enter this labyrinth is the only man in the mountains who knows anything about it!" declared the other. "I'm not certain that we didn't leave the stone out of place when we left this morning. But, if we didn't, our friend is certainly down stairs at this minute! I'll drop down and see, anyway!"
"Push the boys in first," advised the other.
"What do you think of this for an elevator?" demanded Tommy as he backed into the opening. "These fellows seem to be foolish—like a fox!"
George followed Tommy into the tunnel as the latter dropped down, and then the figure of one of the outlaws blocked the opening.
For only a minute, however, for the boys heard a succession of pistol shots, and then the sound of voices rang into the cavern they had just left.
The next instant the outlaws crowded into the tunnel, but instead of dropping down, waited near the entrance, weapons in hand.
CHAPTER XVII
A MEETING UNDER GROUND
"Some one's got the combination to this channel, all right!" Chester repeated as he joined Will in the larger cavern.