"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.

"Well," Jimmie said, "I don't like the company of these rats, so if you'll kindly dig into the refuse on your side, we'll work from this side and we'll soon be out. These rats look hostile."

"You let 'em alone!" advised Tommy.

"Yes, I'll let 'em alone—not!" shouted Jimmie. "You wait until I get an armful of rocks and I'll beat some of their heads off!"

"For the love of Mike, don't do anything of the kind!" yelled Tommy. "They'll climb onto you nine feet thick if you injure one of them!"

But it was too late! Jimmie acquired an armful of large sized pieces of slate and began tossing them into the huddle of rats in the corner.

For an instant the rats squealed viciously as they Were struck by the sharp edges of the slate, then they seemed to confer together for a moment or two, then they spread out like a fan and began moving toward the two boys.

"Now you've done it!" cried Tommy. "If you don't get out of there in about a second, the rats'll eat your legs off!"

Without waiting for the boys to assume the offensive, the rats began screaming and springing at their feet.