While on the way home, George, who was seated by the Professor, mused over the occurrences of the day. "It has always been a wonder to me to know why it is that humanity must always be surrounded by a mystery of some sort. It seems there is always something just beyond him, and he must struggle and work to find it out. Why is it?"

"You have asked the great question of the ages. It is an eternal question. Why should man know everything? That would be omnipotence. If you stop to consider, it will occur to you that the moment man knows everything he ceases to be a man. All energy, all effort, and every instinct in life fades away. The association of man with man would cease. Take the simple act of one lady calling on another. Do you think it is merely to look at her friend, or is it done to make some inquiry? Every action in life has in it some desire to acquire something, to get that which man did not possess before. The quest for the things of this life become and are the great pleasures which man enjoys. It is not their possession. Men pursue pleasure. That is a seeking after something just as much as hunting for wealth."

Returning to their home, the samples which the Professor and John had gathered were carefully taken to the laboratory, and several of the large copper receptacles cleaned for the honey. This was the part which Angel enjoyed more than anything else. And here it may be remarked that, when John was installed, Angel was a little shy with the stranger, but gradually became accustomed to his presence. Somehow John could not fully understand the creature, and often would be seen following his motions; but within a week Angel would permit himself to be caressed without objection, and he seemed to know that no harm could come from the kindly faced man.

Notwithstanding the mystery of their new friend, there could be but one course to follow. They lived on the island and were a part of it. The longing to know what the other side of the island contained was an ever-constant inquiry. Something must be done to forward their efforts in that direction.

During the four weeks at home a good supply of provisions had been gathered, and now the plans were made for an overland journey. The wrecked boat was still near the mouth of West River. It would be a week's trip to bring it home, and this was not considered advisable, particularly as the monsoons were still blowing, with greater or less violence and frequency.

It may well be imagined that the boys had not forgotten the cave. It was their constant talk by day and their dreams at night. It had a fascination which was constantly drawing them in that direction, but, singularly, they never entered it. But one day George suggested that they make a search on their own account. Harry quickly assented, and taking up the two lamps, together with their weapons, were soon at the entrance.

They cautiously went down the stone steps and directed their way to the recess where the treasure was deposited. The skeletons had been buried on a previous visit, so they did not have that grim recollection to ponder over.

What interested them most was the chamber to the east which had been examined by the Professor, and to that they made their way. During the first two hundred feet the direction was to the east, or nearly so, and then the walls suddenly turned to the right, and here a sight met their eyes which bewildered them.

The chamber was a gorgeous one, not so large as the one in which the pirates had their booty, but the calcareous hangings on the walls were far superior and possessed greater decorative effect. From a point near the center of the cavern, they turned and examined all sides, and to the south was what appeared to be an outlet, and this was approached.

They moved nearer with a silent tread, as though fearing the ghosts of the past century would rise to receive them. They saw a recess, cut like a room in the side of the walls, symmetrical in form, and fitted with all the comforts and luxuries that humanity could wish, but it was crumbled, and crumbling, and everything fell at the touch.