"But how do the people get the articles to exchange for these things?"

"The people do not acc.u.mulate articles to buy other articles with.

Instead, they work to get money, and with this money they buy the things."

"I do not know what you mean by that. What is 'money'?"

"It is an article which tells what everything else is worth."

"Then it must be wonderful. I would like to see that remarkable thing which can tell what everything else is worth."

John took some of the coins from his pocket. "Here is some of it, which we use on Wonder Island."

The Chief smiled. He held them in his hand. He knew the meaning of the hole in the center. They were intended, as he thought, to be threaded on a string, and used as an ornament.

They fascinated him. He had never seen anything so attractive. He looked at John, while he thought, but did not speak. Then John said: "This is worth one cent, and this larger one five cents."

He compared the two. Finally, he said: "What makes this worth so much more than the other, and why are they worth anything?"

"Because there is so much metal,--so much copper, in each."

"But copper is of no use. I cannot eat it, and it will not clothe me."

"No, but if you have this money then you can get the clothes, and the size of them will tell just how much clothing you can get."

"I do not understand it. Where can I go and get clothing with these round pieces!"

"You must go where the clothing is, or the goods must be brought to you."

"Well, if we are here, at a place where there should be no clothing, or no food, this _money_, as you call it, would not enable me to clothe or feed myself?"

"a.s.suredly not."

"Then it has no value?"

"No; it merely measures the value of something which I can eat or wear, or use."

"Then why not use a taro root, or a fowl, or wisps of fibre?"

"That would be all right, if we could have a common understanding between us of how much a taro bulb was worth by the side of a bundle of fibre, and how large the bundle should be to exchange fairly with an armful of Amarylla tubers."

On the third day the boys, together with John, a party of the boys, and three natives under the lead of Calmo, started for the northern end of the island. John had now learned that the island was entirely unlike the Wonder Island formation.

The latter was fairly circular in form, whereas the one they were now about to explore was narrow and long. That part of the southern portion which they had carefully examined, in order to learn its agricultural possibilities, was rolling, and in many places had level plateaus, not anywhere at a greater alt.i.tude than three or four hundred feet above sea level.

There was higher ground to the north, where the climate was uninviting, so Beralsee said, and it was for that reason they made it a convict colony.

John was anxious to see the people who were exiled from their homes on account of their crimes. Furthermore, he was impressed with the idea that the upper end showed volcanic upheavals, which would be likely to expose mineral formations.

Gruesome tales were current of the ferocity of the convicts. It was no wonder that the poor victims, whom George had prevented from being expelled several days before, regarded their deliverance as such a great blessing.

No one, once condemned, was ever permitted to come back. The condemnation was for all time. Furthermore, it was part 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 ash.o.r.e 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 shipwrecked, but Wright knew nothing of Walter. If the solution of this matter does not lie in some other island, we might as well give it up."

Before describing the events of the journey it is necessary to make a digression, so that we may be able to recount some things which had a bearing on the adventures and experiences of the two boys after they returned.

The natives on Wonder Island, as well as on the island where they now were, wore the most primitive kinds of clothing. The men had the simplest clothing, merely a breech clout, worn about the loins, and the Chiefs usually wore some distinguishing clothing about their shoulders, and usually on their arms.

The women, however, had short skirts, and like their white sisters, abounded in ornaments. Some of them had jackets, to which the trinkets were attached. All delighted in bracelets. These were usually formed like bands around their arms and limbs, and the wealth and importance of the dame was judged from the number so employed.

As a result, when they became great and wealthy, more and more clothing had to be used, to enable them to attach the ornaments. It might be said, that clothing was worn, not for the purpose of covering the body, or for comfort, but in order to serve as a vehicle to attach the much desired trinkets, and the dangling character of these articles seemed to be the great attraction.

For this reason bright and sparkling bits of jewelry were the most sought. It mattered not what they were made of, but the glistening surface had its value to them. Singularly enough, the women on the new island strove to decorate themselves in like manner, and presumably, for the same purpose.