Undead - P

Petitioner = Petitioners are a special class of Adepts who may or may not develop supernatural traits from Degree progression, but instead from the interaction with a specific type of Supernatural. Priests develope supernatural abilities from the Saints they venerate, Archangels receive them as gifts from Celestial Patrons, etc.  
Phantom Memories = These are memories which 'pop' into the mind of a target without warning. They are usually intense because they were traumatic experiences from the previous life of a Ghost. The memories have somehow been imprinted into the Ghost's regular haunt and so people who stay there, if they are the truly receptive type, will find themselves reliving the past life of a Ghost. 
Power Drain = Something that people who spend time around Ghosts will tell you is - always keep an extra set of batteries. Spirits like Ghosts or other low-level incorporeal entities seem capable of draining electronics of their energy in order to fuel their own manifestations. 
Project Lazarus= A loose confederation of interest groups who study the subject of death from a purely scientific viewpoint.