The Cup of Death is an advanced potion created and used by witches. Not much is known of it, but it is implied by it's name and by comments made by Thea Harman that it is a deadly poison and is used by the Inner Circle to execute witches for serious crimes (such as telling a human about the Night World).
Trivia[]
- As iron is poisonous to witches, it is possibly one of the ingredients used in the potion, though this is unconfirmed.