Graveyard Mists
System: The vampire chants a paean to the dead and bites his tongue, spitting one point of blood upon the earth. If the ritual succeeds, wisps of luminous fog rise from the spot where the blood fell and spread through the surrounding area.
System: Within minutes of successful casting, the unnatural mist blankets the earth and coils above in tattered streamers, filling a radius of two yards per success. Each minute that passes reduces this area by one yard. Apart from its usual obscuring qualities, the fog also reveals any ghosts as translucent phantasms to all onlookers. The dead may whisper softly at a cost of one Willpower point per minute of conversation, though they vanish and fall silent again if they step
beyond the fog.
Reference: PGHC 202