Haunted

Not all undead lay to rest, not all spirits reach the gods, not every soul is harvested.
Something from the otherside has latched on to you, your soul has been leeched to make room for the spirit of another. This soul is usually one that was close to the still living creature that is haunted, or is the consequence of a curse. Being haunted means that you take a -10 to your soul stat as the creature makes room to reside. The Haunted creature can hear the soul at all times, other's can not. Although, when the Host is asleep, or is otherwise knocked unconcious, the soul can take control. The Spirit has a -5 to all tests as they are not in the body they once knew, but other then that can take control until the host once more is at positive health, or is outright killed.