I was at a strange loss to understand this, and resolved to spend some time in the observing it, to see if nothing from the sets of the tide had occasioned it. But I was presently convinced how it was, viz., that the tide of ebb setting from the west, and joining with the current of waters from some great river on the shore, must be the occasion of this current; and that according as the wind blew more forcibly from the west, or from the north, this current came near, or went farther from the shore; for waiting thereabouts till evening, I went up to the rock again, and then the tide of ebb being made, I plainly saw the current again as before, only that it run farther off, being near half a league from the shore; whereas in my case it set close upon the shore, and hurried me and my canoe along with it, which, at another time, it would not have done. This observation convinced me that I had nothing to do but to observe the ebbing and the flowing of the tide, and I might very easily bring my boat about the island again. But when I began to think of putting it in practice, I had such a terror upon my spirits at the remembrance of the danger I had been in that I could not think of it again with any patience; but, on the contrary, I took up another resolution, which was more safe, though more laborious; and this was, that I would build, or rather make me another _periagua_, or canoe, and so have one for one side of the island, and one for the other. You are to understand that now I had, as I may call it, two plantations in the island; one, my little fortification or tent, with the wall about it, under the rock, with the cave behind me, which, by this time, I had enlarged into several apartments or caves, one within another. One of these, which was the driest and largest, and had a door out beyond my wall or fortification, that is to say, beyond where my wall joined to the rock, was all filled up with the large earthen pots, of which I have given an account, and with fourteen or fifteen great baskets, which would hold five or six bushels each, where I laid up my stores of provision, especially my corn, some in the ear, cut off short from the straw, and the other rubbed out with my hand. As for my wall, made, as before, with long stakes or piles, those piles grew all like trees, and were by this time grown so big, and spread so very much, that there was not the least appearance, to any one's view, of any habitation behind them. Near this dwelling of mine, but a little farther within the land, and upon lower ground, lay my two pieces of corn ground, which I kept duly cultivated and sowed, and which duly yielded me their harvest in its season; and whenever I had occasion for more corn, I had more land adjoining as fit as that.