Now, I began sorely to repent that I had dug my cave so large as to bring a door through again, which door, as I said, came out beyond where my fortification joined to the rock: upon maturely considering this, therefore, I resolved to draw me a second fortification, in the manner of a semicircle, at a distance from my wall, just where I had planted a double row of trees about twelve years before, of which I made mention: these trees having been planted so thick before, they wanted but few piles to be driven between them, that they might be thicker and stronger, and my wall would be soon finished. So that I had now a double wall; and my outer wall was thickened with pieces of timber, old cables, and everything I could think of, to make it strong; having in it seven little holes, about as big as I might put my arm out at. In the inside of this I thickened my wall to about ten feet thick with continually bringing earth out of my cave, and laying it at the foot of the wall, and walking upon it; and through the seven holes I contrived to plant the muskets, of which I took notice that I had got seven on shore out of the ship; these I planted like my cannon, and fitted them into frames, that held them like a carriage, so that I could fire all the seven guns in two minutes’ time; this wall I was many a weary month in finishing, and yet never thought myself safe till it was done.
When this was done I stuck all the ground without my wall, for a great length every way, as full with stakes or sticks of the osier-like wood, which I found so apt to grow, as they could well stand; insomuch that I believe I might set in near twenty thousand of them, leaving a pretty large space between them and my wall, that I might have room to see an enemy, and they might have no shelter from the young trees, if they attempted to approach my outer wall.
Thus in two years’ time I had a thick grove; and in five or six years’ time I had a wood before my dwelling, growing so monstrously thick and strong that it was indeed perfectly impassable: and no men, of what kind soever, could ever imagine that there was anything beyond it, much less a habitation. As for the way which I proposed to myself to go in and out (for I left no avenue), it was by setting two ladders, one to a part of the rock which was low, and then broke in, and left room to place another ladder upon that; so when the two ladders were taken down no man living could come down to me without doing himself mischief; and if they had come down, they were still on the outside of my outer wall.
Thus I took all the measures human prudence could suggest for my own preservation; and it will be seen at length that they were not altogether without just reason; though I foresaw nothing at that time more than my mere fear suggested to me.
XII
A Cave Retreat
While this was doing, I was not altogether careless of my other affairs; for I had a great concern upon me for my little herd of goats: they were not only a ready supply to me on every occasion, and began to be sufficient for me, without the expense of powder and shot, but also without the fatigue of hunting after the wild ones; and I was loath to lose the advantage of them, and to have them all to nurse up over again.
For this purpose, after long consideration, I could think of but two ways to preserve them: one was, to find another convenient place to dig a cave underground, and to drive them into it every night; and the other was to enclose two or three little bits of land, remote from one another, and as much concealed as I could, where I might keep about half-a-dozen young goats in each place; so that if any disaster happened to the flock in general, I might be able to raise them again with little trouble and time: and this though it would require a good deal of time and labour, I thought was the most rational design.
Accordingly, I spent some time to find out the most retired parts of the island; and I pitched upon one, which was as private, indeed, as my heart could wish: it was a little damp piece of ground in the middle of the hollow and thick woods, where, as is observed, I almost lost myself once before, endeavouring to come back that way from the eastern part of the island. Here I found a clear piece of land, near three acres, so surrounded with woods that it was almost an enclosure by nature; at least, it did not want near so much labour to make it so
