How does the Vaulderie ritual work?
Using a knife dedicated to the rite, blood is drawn from all members of the pack. The blood is then mixed in a chalice (which can be a bowl, teapot, etc). The pack priest then recites an incantation which concentrates the blood. Each pack member then drinks from the chalice. After just one drink, a special bond of loyalty (called the Vinculum) is created between the drinkers.