Drink of Styx's Waters

Level III Rituals -x- The Necromantic Library of Phineus -x- Level One Rituals -x- Level Two Rituals -x- Level Three Rituals -x- Level Four Rituals -x- Level Five Rituals

Description: The necromancer robs a grave and steals the corpse's skull. He saws off the top of the skull; the sawn-off piece, flipped over, forms a cup shaped piece of bone. He covers this with clay, making a bowl, which he precedes to fire in a kiln. If any blood descendant of the corpse eats from the bowl during a meal with the necromancer, any promises the subject makes to the necromancer gains otherworldly enforcement. If the subject fails to live up to them, he is visited by a Specter, which torments him relentlessly unless he makes good on them or offers the necromancer acceptable compensation. In addition to robbing the grave, the modeling and firing of the bowl takes at least 4 hours, depending on how fancy the necromancer wants it to be look. It may be reused until destroyed.
Reference: Page 105 - 106. BMST (Blood Magic - Secrets of Thaumaturgy)
Note: This Giovanni ritual has nothing to do with the level 4, Giovanni ritual called "Drink of Lethe's Waters. This ritual is a sympathetic binding of a dead person's descendants, while the level 4 ritual is a memory curse created by the Giovanni for making wraith's more pliant. Neither of these ritual's is directly related to any of the Mnemosyne Memory rituals, though the basic idea behind the level 4 "Drink of Lethe's Waters" was used as a prototype for the level 3 ritual created by Benesj Cherno, called "Mnemosyne's Curse.