"Let's follow this path," said Bill.
"All right," said Pud.
They turned off and they had not gone far before they came to what seemed like a mine. The boys were very excited as it seemed to them that they had discovered the reason why Field and his friends had made their summer home in this gulch rather than in some other that would have been just as suitable from the wireless standpoint.
"This looks like a mine to me," said Bob.
"It certainly does look that way," replied Bill.
"He has a lot of quartz over here," said Bob as he went over to a little pile that had been made to one side.
"It looks as if this were a recent discovery," said Bill.
"It certainly does," said Pud.
They examined the quartz but it did not look like anything they had ever seen.
"Let's take some of it back with us," said Bob. "Mr. Waterman is quite an expert on metals, rocks, etc., and he will probably know what it is."