Ancient vampiric relic
The Bloodstone is an artifact said to drip the blood of saints. It was created centuries ago by leaders of the Church as a peace offering to Vlad Tepesh, in hopes that it would slate his blood-thirst and allow the Church to create a peaceful relationship with the original Vampire Lord of the Black Court.
Over time, it was lost to the ages, until Budek traced it to Charlottesville. He sent several of his followers to find it, for it was the only thing that could help return him to a fully revived state. It was found hidden in Monticello, having been recovered by Thomas Jefferson and his fellow adventures.
The Bloodstone is a rounded crystal held in the grip of a carved skeletal hand.