Since we shall follow the crew of the yacht through many adventures, let us make their acquaintance at once. At the helm stood Harry Hamilton, a boy of sixteen, strong of build and an athlete of renown within the circles of his school. Honest and straightforward in all his dealings, and with a cheery disposition, he commanded the respect and admiration of his fellows, and because of his natural characteristics, was usually looked upon as the leader in their sports. With his parents he was spending his vacation at their summer home at Cottage City.