“They’ve found it!” he cried, springing forward.
The professor and Jumbo followed. As they came up Rob was pointing to an opening at the base of the cliff which the cleared brush had revealed.
“The entrance to the cavern of Ruby Glow!” he exclaimed dramatically, while the rest of the Boy Scouts swung off into Tubby’s extemporized song of triumph.
“The entrance to the Cavern of Ruby Glow!”
CHAPTER XXIII.
TRAPPED IN A LIVING TOMB.
After the first excitement and confusion had quieted down a bit, the major and the professor began discussing ways and means for exploring the cavern.
“When shall we start?” asked Merritt.
“At once, I think,” said the major.
“I agree with you,” said the professor; “no time like the present.”