of the Chief's
unwritten code, that no one who transgressed the law could ever make
atonement, or recover his rights.

To be able to meet people so condemned, and to talk with them and get
their views, was worth an exertion, surely, and Harry and George were
just as enthusiastic at the prospects of the journey.

"That may be some recompense for not finding any caves," said George.

Harry laughed, as he looked at George. "To hear you talk people might
think you had caves on the brain."

"Well the caves are the only thing that we have had in the way of sport.
And then the treasures!"

"I know that; but I shall not be disappointed if there isn't a cave
within five hundred miles."

"Nor I; but John is very anxious, for some reason, to find some
particular cave. I'll bet anything that skull we found on the southeast
peak of Wonder Island has something to do with it, judging by the way he
is caring for the skull, and spending hours in examining it."

"I had forgotten about that," responded Harry. "That brings back my
interest, now. But John does not think there are any caves on this
island, but he believes that there is another island farther south."

"Is that so!"

"I am sure of it."

"How sure?"

"Well, the chart which John made has this island on it, and a mark which
shows something like it directly to the south. I saw that several days
ago."

"When did he make the drawing?"

"Since he has been on this island."

Harry emitted a low whistle. "I thought John had something in his mind
all along. What do you suppose he expects to find in that particular
cave?"

"Well, not money; that's sure. It might be a good idea to do some
thinking and searching on our own account."

"I have often wondered, since we have been on Wonder Island, and more
particularly, since we landed here, whether it would not be possible to
trace some of the unsolved mysteries of Wonder Island to this, or some
other island."

"Yes, I have often thought of that. We have gone over every part of that
island, and found no trace of the other boat load, that is of the boys
who came ashore on the _Investigator's_ No. 3. None of the tribes ever
knew or heard of that boat, nor was there ever a trace of the members of
that crew.

"That is the mystery. Some one brought the boat to the island. Some one
took it inland. Some one, a man by the name of Walter, wrote a note
addressed to Wright, who was one of the companions of John when he was
shipw