Chime Of Unseen Spirits
During the nascent Camarilla's conflicts with the Giovanni, the greatest danger to the Ivory Tower was the Necromancers' ability to spy upon their enemies with impunity. Clan Tremere created a ritual that would allow them to detect ghost, spirits, and demonic entities.
The thaumaturge must collect the wedding rings of three dead women and melt them to cast a metallic chime. She must chant over the chime over the course of the evening, naming each of the brides once per hour. Once the chime has cooled, it imprints the memory of the ritual in the metal.
Once it is hung in a room, the chime will harmoniously ring a soft warning when in the presence of an unseen spirit, ghost, or devil. Anyone that understands the mystical nature of the chime and is within earshot may benefit from this warning. This thaumaturgical device will work for a year before the ritual must be recast.
System: Once the chime has been enchanted, it will ring once every time an unseen spirit, ghost, or devil is within thirty feet/ten meters of its physical presence. Otherwise, the chime has been charmed to not ring, even in heavy wind or by manual manipulation. Some powers may block the ability of the chime to detect a specific entity, per the discretion of the Storyteller.