"No," replied the reporter; "it is more probable that they wander at random, and it is their interest to rove about until the time when they will be masters of the island!" "The masters of the island!" exclaimed the sailor; "the masters of the island!" he repeated, and his voice was choked, as if his throat was seized in an iron grasp. Then in a calmer tone, "Do you know, Captain Harding," said he, "what the ball is which I have rammed into my gun?" "No, Pencroft!" "It is the ball that went through Herbert's chest, and I promise you it won't miss its mark!" But this just retaliation would not bring Ayrton back to life, and from the examination of the footprints left in the ground, they must, alas! conclude that all hopes of ever seeing him again must be abandoned. That evening they encamped fourteen miles from Granite House, and Cyrus Harding calculated that they could not be more than five miles from Reptile Point. And, indeed, the next day the extremity of the peninsula was reached, and the whole length of the forest had been traversed; but there was nothing to indicate the retreat in which the convicts had taken refuge, nor that, no less secret, which sheltered the mysterious unknown. CHAPTER TWELVE. EXPLORATION OF THE SERPENTINE PENINSULA--ENCAMPMENT AT THE MOUTH OF FALLS RIVER--GIDEON SPILETT AND PENCROFT RECONNOITRE--THEIR RETURN-- FORWARD, ALL!--AN OPEN DOOR--A LIGHTED WINDOW--BY THE LIGHT OF THE MOON! The next day, the 18th of February, was devoted to the exploration of all that wooded region forming the shore from Reptile End to Falls River. The colonists were able to search this forest thoroughly, for, as it was comprised between the two shores of the Serpentine Peninsula, it was only from three to four miles in breadth. The trees, both by their height and their thick foliage, bore witness to the vegetative power of the soil, more astonishing here than in any other part of the island. One might have said that a corner from the virgin forests of America or Africa had been transported into this temperate zone. This led them to conclude that the superb vegetation found a heat in this soil, damp in its upper layer, but warmed in the interior by volcanic fires, which could not belong to a temperate climate. The most frequently-occurring trees were kauries and eucalypti of gigantic dimensions. But the colonists' object was not simply to admire the magnificent vegetation. They knew already that in this respect Lincoln Island would have been worthy to take the first rank in the Canary group, to which the first name given was that of the Happy Isles. Now, alas! their island no longer belonged to them entirely; others had taken possession of it, miscreants polluted its shores, and they must be destroyed to the last man. No traces were found on the western coast, although they were carefully sought for. No more footprints, no more broken branches, no more deserted camps.