"The very man I am looking for!" ejaculated Dave, and his heart gave a bound. "Oh, boys, what can it mean?"
"It means that Mr. Porter has been here," an swered Roger.
"He must have been hunting for that treasure," said Phil. "This may be one of his maps."
"That's a fact," said Billy Dill. "He was always drawing jest such things when I was with him. He said he was bound to find that treasure some day."
"This map looks to be quite old," went on Dave, in disappointed tones. "I wish it was fresh and he was here."
"He must have come here after sailing to Sobago Island," said the senator's son, "and that can't be so very long ago."
After that they made a closer hunt than before in and around the camp, but found nothing, outside of two buttons, a bit of lead pencil, and the broken handle of a spade.
"That spade proves there was some digging done," said Phil. "Undoubtedly he came here looking for that treasure."
"Did you ever get any of the particulars of that treasure?" asked Dave, of the old sailor.
"Not much, exceptin' that it was a treasure of pearls and precious stones once hidden by some native king. Mr. Porter didn't want to tell much
