Contract of Nephtas is a recurring magical object in the shared cosmos: a contract that binds totally those who sign it voluntarily. Figures of authority use it to bind signers to missions or commitments irrevocably. It appears in multiple contexts of the shared cosmos.
Notable appearance
Azuth (an avatar, patron of sorcerers) presents Minaya and Soluna with a Contract of Nephtas as a “ritual of commitment and investiture” before sending them on their first mission, to destroy the doubles. It is a requirement for Azuth to give them very dangerous information.