“Yes,” said Smith, “for we know as yet only a small portion. But even if there are no enemies upon the island, they may come from the outside, for this part of the Pacific is a dangerous region. We must take every precaution.” So the facade of Granite House was lighted with five windows, and with a door opening upon the “apartments,” and admitting plenty of light into that wonderful nave which was to serve as their principal hallroom. This facade, eighty feet above the ground, was turned to the east, and caught the first rays of the morning sun. It was protected by the slope of the rock from the piercing northeast wind. In the meantime, while the sashes of the windows were being made, the engineer meant to close the openings with thick shutters, which would keep out wind and rain, and which could be readily concealed. The first work was to hollow out these windows. But the pickaxe was at a disadvantage among these hard rocks, and Smith again had recourse to the nitro-glycerine, which, used in small quantities, had the desired effect. Then the work was finished by the pick and mattock—the five ogive windows, the bay, the bull’s-eyes, and the door—and, some days after the work was begun, the sun shone in upon the innermost recesses of Granite House. According to Smith’s plan, the space had been divided into five compartments looking out upon the sea; upon the right was the hall, opposite to the door from which the ladder was to hang, then a kitchen thirty feet long, a dining-room forty feet long, a sleeping-room of the same size, and last a “guest chamber,” claimed by Pencroff; and bordering on the great hall. These rooms, or rather this suite of rooms, in which they were to live, did not occupy the full depth of the cave. They opened upon a corridor which ran between them and a long storehouse, where were kept their utensils and provisions. All the products of the island, animal and vegetable, could be kept there in good condition and free from damp. They had room enough, and there was a place for everything. Moreover, the colonists still had at their disposal the little grotto above the large cavern, which would serve them as a sort of attic. This plan agreed upon, they became brickmakers again, and brought their bricks to the foot of Granite House.