Ghosts

Common Knowledge about Ghosts
Ghosts do not formally classify as a race. They do not have culture, distinct physiological form, or formal leaders, excluding the Royal Ghosts. Ghosts themselves take on the exact form of the deceased one, with the exception of having ethereal properties. Most Ghosts reside in the Netherworld, but some Ghosts are allowed passage into regularity in order to fulfill whatever kept their spirit restless.

The Netherworld
This place is where all ghosts go when their ties with regularity are broken. Only Ghost Royalty can open portals between regularity and this dimension. If a person enters the Nether portal and it closes behind him/her. That person loses all ties with regularity and becomes a Ghost. Ghost Royalty can also admit Ghosts from the Nether into regularity again.