wall." He studied it for a moment. "Gaston Brown!"
"The father of Watt Brown, who left the treasure," ejaculated Dan. "Boys, I believe we are close to the end of this search."
"I believe you," I put in. "But Merkin and Delverez are closer than we are."
"And they have Koloa with them, I believe," added Oliver. "Merkin wouldn't let the native get away."
"Yes, but, Oliver, it's pretty hard to hold a crazy man," said Dan.
"If Koloa is really crazy," said Oliver. "To tell the plain truth, this thing is an awful mystery."
"Well, we don't care what it is, so long as we get the treasure," said I. "The question is, what is our next move?"
"We must follow up those who were here."
"That goes without saying. But how are we to follow them?"
"By locating the double-headed idol said to be standing at the entrance to the cave. I guess we have missed 'the face on the rock when the sun comes up,' as that description put it."
"Or else we are pretty close to it," said Dan.
The talk lasted a good while, but was of small satisfaction. However, we went on, until the trail seemed to come to a sudden end.