"We won't give up without a fight."
There was a tremendous uproar out in the cave. The men were talking loudly and their voices were intensified by the tumultuous echoes of the place.
"Follow them in!" some one shouted. But Gus snarled:
"We can't. They're armed."
"Well," said Frank quietly, "we have enough bullets to keep them back for a while, at any rate."
"They'll get us, in the long run."
"I suppose so."
Then the Hardy boys heard the voice of the man called Sam. He came into the cave, shouting:
"They can't get out! There's been a cave-in and the tunnel is jammed up with rock."
"Good!" exclaimed Gus exultantly. "Here! Hand me that light."
There was a moment of silence. Then the powerful lantern was evidently turned toward the mouth of the tunnel, for the light gleamed on the walls. As they were just around the bend in the passage, the boys could not be seen, but the glaring light was reflected from the rocks.
"They're out of sight," muttered some one. "Try a shot!"
Instantly, there was an explosion, as a re-
