Ghouls are very Dark beings who go out of their way to protect sites and other places and individuals of importance. This could be you, your ritual space, a temple, or any other site or individual you assign them to protect. They are patient, resilient, and are more than fine with employing any and all means in order to get the job done. They won't shy away from using darker methods to this end. These beings radiate a powerful, awe inspiring and fear inducing aura that is sure to deter any and all beings that would seek to harm whatever it is the Ghoul is guarding.