Afterlife

"'You can't have been in an Afterlife. No one comes back from those.' -Eleanor West to Nancy "An Afterlife is a type of world classification mentioned in Every Heart a Doorway. On page 162, Nancy says that Sumi, Loriel, and Lundy can't move on to their afterlives until Jill gives back the things that make them important (Sumi's nimble hands, Loriel's keen eyes, Lundy's intelligent brain.)  In the last chapter, Kade says to Nancy that he and Christopher are working on a new map for worlds connected to the dead, with Vitus and Mortis as minor directions.

There are no examples of Afterlife worlds, either because they just weren't mentioned in the book or because none are known since no one comes back after traveling there.

Trivia

 * An afterlife is "(in some religions) a life after death."