The attacking fleet was made up of many large log canoes, driven by both paddles and sails. The hill men whom Ban had led to conquer the tribe by the sea knew little or nothing about making boats when they came, but the prisoners they had taken, women, and a few men, they made their slaves, and from these they learned how to make canoes of wicker and skins, and also how to burn them out of logs. As time went on Ban's tribe became great fishermen, just as the sea people had been before them, and travellers came down from the valley, bringing grain, and fine pottery, and many other new things that the sea people had known nothing about. This made the tribe of Ban very powerful and strong; from the slaves they had learned to make fish hooks, and nets, and grass cloth and boats, and from the hill people, and the dwellers in the valley, they learned how to make bread, and wine, and to plant things for food, and make clothing of leather and skins instead of grass cloth, and much besides. Soon all the country between the valley and the sea was covered with people, and now the new tribes that wandered away from the valley went inland, settling new country, for there was no longer any room for them, in the direction of the sea. When the tribe of Ban, and the other tribes that now lived along the seacoast, wanted to find new places where there was plenty of game, there was nowhere for them to go. The sea stopped them. But they knew, when they saw the boat of Modor sail along their coast, that the old legend about the land of the flying birds was true, and that somewhere across the Great Water was a new country, where there might be plenty of game, and room for them to live. So a thousand of them, in fifty great canoes, twenty men to a canoe, set sail on a voyage of discovery. It was their boats that the watchers on the cliffs saw coming toward them. When the smoke signals went up, all the boats of the island men came flying home, and gathered in the bay below the cliffs. The entrance to the bay was narrow, and they decided to fight from their ships, and keep the enemy's boats out. Unless these could get into the bay, there was no way in which the men in them could climb up to the village on the high ground above, for the cliffs on the ocean side were much too steep to climb. The invaders lowered their sails and paddled about the mouth of the bay, trying to make up their minds what to do. They had not expected to find such a rocky shore, for their own coast was flat and sandy. Then suddenly they decided to sail into the bay and attack the ships of the island men inside.