The boys greeted each other warmly and then all turned their attention to that portion of the cliff where the caverns had once stood.
"They're still alive," Frank exclaimed as he reached a little fissure in the rock and bent downward. "I can hear some one talking!"
"Did you say that George and Sandy and Bert were all in there?" asked Tommy, turning to Will. "How did they get in there?"
"They were all in there just before the earthquake," replied Will. "I can't stop now to tell you how it all happened. They were signalling to us when the shock came."
"Signalling, how?" asked Tommy.
"Morse code, red and blue lights!" replied Will. "It's all the work of the miner and his bum friend," Will continued. "The boys were barricaded in the cave when the earthquake stirred things up, and the same convulsion which wrecked the cave injured the two men who were responsible for the condition the boys were in. Now you know all about it that I'm going to tell you until we get the lads out and get back to the cabin!"
"They're not dead, anyway," Frank exclaimed "I can hear Sandy's voice!"