Books are like the porthole of a ship. It gives you a glimpse into a whole you have never known but it only lasts for a while. once the ship stops and you have to get off the portal closes. The characters are still there, living throuhg the rest of there lives like you never existed but in a world that is not known to us. After the last word on the last page the porthole closes, you can look through it again, but it will just show you what you've already seen. The authors are the only ones that can travel between the worlds, but if they decide to stop the story of a certain character, there job is done and the story will never be continued.