User blog comment:Cuvince/The Return of Bobby?/@comment-76.189.26.84-20120525011834/@comment-4920092-20120525012128

Ghost do not become monsters. In the SuperVerse, a Monster is something created by Eve. Technically, Leviathans are not monsters.....they are the only things in Purgatory except for Eve that are not monsters.

Ghosts do not "become" something else. They are still human souls. They just become blinded by hate, and twisted into something else.....a different psychology, but not a different soul. It works just like a human - if a living person is entirely consumed with something, they will become someone else altogether, but they are still human.