Having now recollected them, however, he explained the matter to Cavendish, and asked if he should bring the charts up on deck. "By all means," replied the skipper; "let us have them at once, Trevose, my man." Roger dived below, and soon reappeared with the charts under his arm. They were immediately spread open on the deck and overhauled, and all were found to be of the utmost importance; some papers also being found among them giving the bearings and soundings of certain secret channels leading to ports on the South American coast. There were also found plans of towns and fortresses that would prove of inestimable value to them. These last were forthwith placed in safety for future reference, and a chart was presently discovered showing that particular portion of the ocean upon which they were now sailing; and, sure enough, there was a small island marked in the precise spot occupied by the one for which they were heading. There was, in ink, a description of the island-- written, of course, in Spanish,--setting forth that it had been named "Isla de Corsarios", and that it was, according to English measurements, two and a half miles long by one mile broad; also that it was uninhabited. The description, written as a marginal note, further stated that there was a spring of fresh water on the island, and that there were palm-trees thereon; that the islet was of sandy soil, and supported no vegetation beyond the few palms mentioned. "This, then, explains the matter," said Cavendish. "Evidently it has been missed by our vessels, but the Dons have located it. I can clearly see that these charts will be indeed very useful to us." By this time the island could be made out from the level of the deck, as also the smoke, which was undoubtedly rising from a signal-fire that had been lighted on the beach. The ships were, however, not yet near enough to make out who the inhabitants were, nor how many of them there might be. Indeed, had it not been for the sight of the smoke, the captain would have imagined the island to be totally uninhabited, and would not have thought it worth while to stop thereat; and, but for the fact of the smoke being observed, this veracious yarn would most probably have had a very different ending. All the officers of the ship, including Cavendish, Roger, and Harry, were now standing in the eyes of the vessel; some had mounted the bulwarks, and were supporting themselves thereon by holding on to the rigging, and one and all were shading their eyes with their hands against the powerful rays of an almost vertical sun, each anxious to catch the first sight of the man, or men, who had built that signal-fire on the beach. In obedience to an order from Cavendish, old Martin, who was credited with having the sharpest eyes in the ship, went aloft to the foremast-head, on the lookout, with instructions to let those on deck know when he first caught sight of the inhabitants of the island.