"But we've got to get out somehow," went on the senator's son, desperately. "We can't stay here forever."
"Not unless this place becomes our tomb."
"You are cheerful, to say the least," answered Roger, with a shiver.
"I don't intend the place shall be my tomb," went on Dave, sturdily. "I am going to get out somehow. Let us do a little exploring."
"What! go into that black hole behind us? Why, we may fall into a bottomless pit!"
"Not if we are careful."
"I don't want to take any more chances—I've taken enough."
Dave held the light low so that he could see where he was going and walked into the opening behind him for a couple of rods. Roger followed very gingerly, for he did not want to be left behind. The opening proved to be a cave in the mountain side and the roof and flooring were of almost solid rock. Walking was very rough, and they could not tell how far the cave extended or in what direction.
"I am going to call again," said Roger, and going back to the mouth of the cave they set up as strong a cry as before. At first they fancied somebody answered them, but then all became silent.
"Nothing doing," murmured the senator's son,
