"We must finish them! Till now we have only lost time!"
"No, my friend," replied the engineer; "you forget that we have a reason for wishing to know if the forests of the Far West do not contain some habitation. Our exploration has a double object, Pencroft. If, on the one hand, we have to chastise crime, we have, on the other, an act of gratitude to perform."
"That was well said, captain," replied the sailor; "but, all the same, it is my opinion that we shall not find that gentleman until he pleases." And truly Pencroft expressed the opinion of all. The stranger's retreat was not less mysterious than was he himself.
That evening the cart halted at the mouth of Falls River. The camp was organized as usual, and the customary precautions were taken for the night. Herbert, become again the vigorous lad he was before his illness, derived great benefit from this life in the open air. His place was no longer in the cart, but at the head of the troop.
The next day, the 19th of February, the colonists, leaving the shore, where, beyond the mouth, basalts of every shape were so picturesquely piled up, ascended the river by its left bank. The road had been already partially cleared in their former excursion made to the west coast. They were now about six miles from Mount Franklin.
The engineer's plan was to survey minutely the valley forming the bed of the river, and cautiously approach the neighborhood of the corral; if the corral was occupied, to seize it by force; if it was not, to intrench themselves there and make it the center of the operations which had for their object the exploration of Mount Franklin.
This plan was unanimously approved by the colonists, for they were impatient to regain entire possession of their island. They made their way then along the narrow valley separating two of the largest spurs of Mount Franklin. The trees, crowded on the river's bank, became rare on the upper slopes of the mountain. The ground was hilly and rough, very suitable for ambushes; and they did not venture without extreme precaution. Top and Jup skirmished on the flanks, springing right and left through the thick brushwood, and emulating each other in intelligence and activity. But nothing showed that the banks of the stream had been recently frequented—nothing announced either
