Summon Guardian Spirit
This power allows the vampire to summon a spirit for the express purpose of guarding him. The spirit aids the vampire in no way except to alert him to danger. Vampires often summon spirits to fill this duty while they sleep. The vampire is able to see the spirit summoned, but the spirit may not speak. In addition, the spirit will only be visible to the vampire during times of danger. Though the spirit cannot speak, it may communicate by ringing a bell, knocking on the bed, etc. The spirit serves the vampire for 24 hours.