Shadow Pact
A bleeding.
William tried hard not to think of what was coming, but the word kept rolling around in his head. As far as he knew, the Coven had stopped bleedings more than a century ago. Most vampires subjected to the torture lost their minds and had to be destroyed afterward, so it was really a pointless punishment and had, therefore, been abandoned.
Clearly Lilith wanted to make a statement.
In the archaic practice of bleeding a vampire, all the blood the vampire contained was drained into a hole in the floor. They were then left in a room made of brick and stone; ten feet thick and underground to prevent them from being able to knock their way out.