Two stout posts were to be put up with a long beam across, on which the outer ends of the rafters were to rest. Two lesser posts in the middle were to mark the doorway. The roof was to be covered with brushwood to some thickness, and then thatched over that with sedges and reed-grass.
The walls they meant to make of hurdles stood on end, and fastened with tar-cord to upright stakes. Outside the hurdles they intended to pile up furze, brushwood, faggots, bundles of sedges—anything, in short. A piece of old carpeting was to close the door as a curtain. The store-room was five feet square, the hut would be eight, so that with the two they thought they should have plenty of space.
The semi-circular fence or palisade starting from the cliff on one side, and coming to it on the other, of the hut was to have a radius of ten yards, and so enclose a good piece of ground, where they could have their fire and cook their food secure from wild beasts or savages. A gateway in the fence was to be just wide enough to squeeze through, and to be closed by two boards nailed to a frame.
It took some time to settle all these details, for Bevis would not begin till he had got everything complete in his mind, but the actual work did not occupy nearly so long as the digging of the cave. There were plenty of poles growing on the island, which Mark cut down with Bevis’s own hatchet, not the blunt ones they had used for excavating, but the one with which he had chopped at the trees in the Peninsula.
As Mark cut them down, some ash, some willow, and a few alder, Bevis stripped off the twigs with a billhook, and shortened them to the proper length. All the poles were ready in one morning, and in the afternoon coming again they set up the two stout corner posts. Next day the rafters were fitted, they had to bring a short ladder to get at the cliff over the mouth of the cave. Then the hurdles were brought and set up, and the brushwood cut and thrown on the top.
Sedges grew in quantities at the other end of the island, where the ground sloped till it became level with the water. In cutting them they took care to leave an outer fringe standing, so that if any one passed, or by any chance looked that way from the shore, he should not see that the sedges had been reaped. They covered the roof two feet thick with brushwood, sedges, and reed-grass, which they considered enough to keep out any ordinary shower.
Of course if the tornadoes common to these tropical countries should come they must creep into the inner cave. Against such fearful storms no thatch they could put up would protect them. The walls took a whole day to finish, as it required such a quantity of brushwood, and it had to be fastened in its place with rods, thrust into the ground, and tied at the top to the outside rafters.
At last the hut was finished, and they could stand up, or walk about in it; but when the carpet-curtain was dropped, it was dark, for they had forgotten to make a window. But in the daytime they would not want one, as the curtain could be thrown aside, and the doorway would let in plenty of light, as it faced the south. At night they would have a lantern hung from the roof.
“It’s splendid,” said Mark; “we could live here for years.”
“Till we forgot what day it was, and whether it was Monday or Saturday,” said Bevis.