On setting his course from Ferro Columbus issued sealed instructions to the captain of each ship which, in the event of the fleet becoming scattered, would guide them to the harbour of La Navidad in Espanola; but the captains had strict orders not to open these instructions unless their ships became separated from the fleet, as Columbus still wished to hold for himself the secret of this mysterious road to the west. There were no disasters, however, and no separations. The trade wind blew soft and steady, wafting them south and west; and because of the more southerly course steered on this voyage they did not even encounter the weed of the Sargasso Sea, which they left many leagues on their starboard hand. The only incident of the voyage was a sudden severe hurricane, a brief summer tempest which raged throughout one night and terrified a good many of the voyagers, whose superstitious fears were only allayed when they saw the lambent flames of the light of Saint Elmo playing about the rigging of the Admiral's ship. It was just the Admiral's luck that this phenomenon should be observed over his ship and over none of the others; it added to his prestige as a person peculiarly favoured by the divine protection, and confirmed his own belief that he held a heavenly as well as a royal commission. The water supply had been calculated a little too closely, and began to run low. The hurried preparation of the ships had resulted as usual in bad work; most of them were leaking, and the crew were constantly at work at the pumps; and there was the usual discontent. Columbus, however, knew by the signs as well as by his dead-reckoning that he was somewhere close to land; and with a fine demonstration of confidence he increased the ration of water, instead of lowering it, assuring the crews that they would be ashore in a day or two. On Saturday evening, November 2nd, although no land was in sight, Columbus was so sure of his position that he ordered the fleet to take in sail and go on slowly until morning. As the Sunday dawned and the sky to the west was cleared of the morning bank of clouds the look-out on the Marigalante reported land ahead; and sure enough the first sunlight of that day showed them a green and verdant island a few leagues away.