"This isn't any grouch!" insisted Tommy. "This is the true story of that man's life! If I had a dollar for every time he doesn't know anything, I'd be the richest boy in the world!"

"Are you thinking of going down the mine tonight?" asked George, with a wink at Will. "We might try another midnight excursion."

"If you kids go into the mine tonight," declared Will, "I'll send you both back to Chicago on the first train!"

"Aw, how are you going to find these boys if you don't go into the mine?" demanded Tommy. "I suppose you'll want us to wait till daylight when the owners will be looking around to see if any damage was done by the inundation. The best time is at night!"

"Look here," Will argued, "we've got to do more than lay hands on the boys! We've got to find out why they are hiding in the mine."

"That's the correct word," agreed George. "Hiding is the word that expresses the situation exactly!"

"There is no doubt," Will continued, "that the boys were sent here by some one for some specific purpose. They are hiding in the mine with a well-defined motive. I have an idea that we might be able to find them in twenty-four hours, but what is more important, is to find out what they are up to."

"Well, in order to get the whole story, we'll have to pretend that we are looking for them and can't find them!" George said.

"That's right!" laughed Tommy. "Give them plenty of rope and they'll hang themselves. We may as well have the whole story while we're at it."

Before preparing their beds for the night, the boys paid a visit to the shaft and made their way down to the rungs which had been cut. They found that they had been replaced by new ones.