John, as Mr. Varney was familiarly known to them, was not only a well educated man, but a great adventurer, and had traveled all over the world in pursuit of scientific knowledge. He was particularly interested in the history of the men who first went to the western world, and scattered civilization to the benighted countries.
Like many men of his character, he did not consider the question of money. He tried to acquire knowledge and information for the love of the quest, and in order to be of service to his fellow man, so it was purely by accident that he became a member of a crew that sailed for the southern seas at the same time that the boys left New York on their trip.
While his companions undertook the mission solely for the sake of the money which might be acquired, John engaged thinking it might offer the means of laying bare many of the early legends and vague historical accounts with which that region of the South Seas abounds, and he knew that if any records were in existence, they could be preserved only in such secure places as caverns, which the Spanish buccaneers invariably selected as the safest places to conceal their treasures.
While the boys, together with the Professor and John, had found a vast amount of treasure, as stated in the first six volumes containing the history of Wonder Island, they found not a single scrap of historical value, excepting a few traces, which have been referred to, and certain inscriptions which all pointed to the same depositary, somewhere in the South Seas.
The last inscription was found by John, shortly before they left Wonder Island, and which, though its full meaning was wrapt in mystery, pointed, as did the others, to another island than the one on which it was found. What made the matter still more interesting, was the knowledge that some one, by the name of Walters, either had prepared the inscription, or had some knowledge of what it meant.
This man was not known to any of the party, and what made it the more remarkable was the information, lately obtained, that while Walters, apparently, knew one of the companions who accompanied John on his wrecked vessel, that man did not know Walters, at least not by that name.