"Well, for a fact we don't know; but you remember we saw signs that even you declared proved what I'm saying—that some of those fellows have wandered as far as this."

"Yes, that's a fact. I'm not apt to forget it. Now, how many figures have you seen dodging along back there, just as if they didn't care to be seen—yet?"

"How about it, Wallace?" queried Jack, doubtfully.

"Two, anyhow; I'm sure of that," came the hesitating reply.

"Yes, at least two, Paul," the other echoed.

"And we are three. That's one reason why I don't see any reason for getting nervous over the discovery," observed the leader, his voice now apparently showing a trace of humor that was bubbling up near the surface.

"But where there are two there may be more, Paul?" objected Jack.

"Yes, possibly eight or ten more," went on the calm leader.

"Goodness! and you say there is no need of our worrying?" exclaimed Wallace.

"Yes, explain what you mean, old fellow. Eight or ten would give us a warm time don't you think?" demanded Wallace, gripping Paul's arm fiercely.