"That's another thing we've got to find out," Frank said, with a grin. "We've got a good many things to find out!"
"And the first thing to discover," Ned said, "is what has become of the boys."
"Right you are!" cried Pat. "I'll go back to the top of the hill and see if there's any commotion on the island."
"What does the island look like?" asked Frank.
"Looks like a valley with a line of hills shutting it in. Looks like a saucer with a high rim. The dago chiefs are encamped in the middle of the saucer."
"In a thicket, of course?"
"It is quite free from jungle growths down there," was the reply—"so clear that I was able to see the encampment and the people moving about. And I think I saw the treaty box, at that!"
"Treaty box?" laughed Frank. "Don't you ever think these brown men have any box to put their treaty in!"
"What do you think about it, Ned?" asked Pat.
"I hardly think they unlock their pocket-books with keys like the one I found," replied Ned. "And, besides," he added, "the white men back of this conspiracy would naturally want a treaty signed up with all the ceremony that could be hatched up, in order to impress the chiefs. Yes, I think there must be a treaty box!"