In The Cay by Theodore Taylor, a young boy named Philip, and Timothy, an older black man, become stranded on a small island after a torpedo hits their ship. Before they get to the cay (island), Philip loses his sight, so he is forced to depend on Timothy for just about everything. Timothy fashions a long rope out of vines, so that Philip can learn to get around the island and to do things for himself. Since there are only the two of them, Timothy wants Philip to be as self sufficient as possible in case something should happen to Timothy. He teaches Philip where to find fresh water, how to catch fish and langosta (a type of lobster), and many other survival skills.