All we know about Roy and Jessica is that they met one summer and became friends and played together, but then Roy's family moved away. We may think that they just forgot each other as they grew up. That could be the end of the story. But we find it is not the end. They grew up and had children of their own. The story of Roy and Jessica reveals that the children of the two main characters are about to share in the same experience as their parents once did. At the end of their story, we learn that Jessica has a little boy named Roy. He wants to invite a little girl with the same name as his...