"How could they possibly cook in here without being smothered to death?" asked Harry.
"The cavern seems to be large enough to take care of all the smoke," was the Professor's reply.
"Well, I don't understand why they should have taken the trouble to come in such a long distance, when they would be just as safe nearer the mouth?"
"Before we leave this place we may be able to answer your two questions in a way that will surprise, if not startle, you," was the Professor's answer.
This vague reply did not detract any from the interest which the boys took in the search.
CHAPTER VII
THE TREASURES OF THE CAVE
While Harry was in the act of drawing back one of the couches, an object behind it seemed to fall apart with a jingling sound.
"What was that?" exclaimed George.