List the different types of ghosts mentioned in the book. What makes them different from each other?

What type of ghost is Helen, and why is she unique?

Both Jenny and Billy had troubled lives. What led to their desertion of their bodies?

Discuss the role of religion in this novel as well as its effect on Helen.

How do you think the story would have been different if Helen and James were actually teens like the bodies they claimed?

Salvation is a key element of this story. How are Helen and James redeemed?

Discuss what the author hints might happen to Billy and Jenny later in the novel. Does this seem realistic to you? Why or why not?