“Might they not as well say they had forgotten a tool or a pocket handkerchief?”

“Or, better still, that they had forgotten to shut the door when they left, and came back to repair the omission.”

“We shall say,” replied Fritz, “that, finding there were twelve strong arms here to do what my father accomplished fifteen years ago by himself—­for the assistance of us boys could not then be reckoned—­we were ashamed of ourselves, and had returned to Rockhouse to make ourselves useful in repairing the damage to the gallery caused by the tempest.”

“Well, that excuse has, at least, the merit of being reasonable; and let it be so.  Fritz and Frank will return to Rockhouse; Ernest and myself will continue the work in hand, and receive the friend or enemy which God has sent us, should he return to resume his quarters; Willis and Jack will investigate the neighborhood.”

“By land or water, Willis?” inquired Jack.

“By land, Master Jack, for this cruise.  I shall abandon the helm to you, for I know nothing of the shoals here-abouts.”

“If,” continued Becker, “though highly improbable, any thing important should have happened, or should happen at Rockhouse, you will fire a cannon, and we will be with you immediately.  Willis and Jack will discharge a rifle if threatened with danger; and we shall do the same on our side, if we require assistance.”

“It is a pity,” remarked Jack, “that we had not two or three four-pounders amongst the provisions.”

“I scarcely regard this matter as altogether a subject for joking,” continued Becker, “and sincerely hope that all our precautions may prove useless.  Take each of you a rifle and proceed with caution; above all, do not go far apart from each other; do not fire without taking good aim, and only in case of self-defence or absolute necessity; for this time it does not appear to be a question of bears and hyenas, but, as far as we are able to judge, one of our own species.”

Two of the squadrons then hauled off in different directions, carefully examining the ground as they went, beating up the thickets, and endeavoring to obtain some further trace of the stranger, in order to confirm those at Falcon’s Nest.

The squadron of observation, in the meanwhile set diligently to work.  A tree having been selected at about fifteen paces from that already existing, it was necessary, as on the former occasion, to discharge an arrow carrying the end of a line, and in such a way that the cord might fall across some of the strongest branches; this done, the bamboo ladder was drawn up from the opposite side and held fast until Ernest had ascended and fastened it with nails to the top of the tree.