"That idiot of a detective," the other boy went on, "undermined a pillar and let about half an acre of roof down into this chamber. When the roof fell, it broke the cribbing and the rats began pouring out.

"They won't hurt you!" declared Tommy. "Only you mustn't go to picking a quarrel with them. They're fighters when they get their tempers up. Just let them alone and they'll let you alone!"

"Who's that talking?" demanded Jimmie.

"That's the relief expedition!" laughed Elmer.

"You ought to be fired out of the Wolf Patrol for not answering Boy Scout signals!" Tommy broke in. "We called to you more than a dozen times, and you never answered once!"

"Well, we had to wait until Elmer reported kind of fellows you were, didn't we?" asked Dick. "We couldn't go and make friends with you with knowing what you were here for, so we kept out of your way until Elmer could find a way to learn more about you."

"And instead of finding a way," Jimmie took up the argument, "he goes off and gets lost in a thicket about six feet square and never shows up with any grub for twenty-four hours! So we had to go and steal grub of the boys!"

"Yes, and we're going to have you pinched when you get out!" laughed
Tommy. "You'll get ninety days for that."

"Where'd that bum detective go?" asked Jimmie. "When the roof fell, we heard him go clattering down the gangway running as though he had only about thirty seconds in which to get to New York."

"He's a long distance from the mine by this time," Elmer suggested.