Grim Reapers

When a spirit lingers too long as a ghost, one of two things happen to her. Either her willpower is worn away and she dissipates into wisps of ectoplasm or her humanity is worn away and she goes quite mad. The latter kind of ghost become grim reapers, ghosts who are so determined to cling onto existance they have forgotten who they were or what they wanted. They hunt other ghosts, tearing them apart with their scythe-shaped claws. Grim Reapers appear as robed figures made of darkness with glowing red eyes.