Tanis, Egypt: Satan’s Citadel or Unholy Translational Error?

Ira Levin’s 1967 novel Rosemary’s Baby and the eponymous 1968 Roman Polanski film based on it both make frequent reference to a mysterious substance called “Tannis Root.” In both book and movie, the substance serves as a convenient plot device and, in film parlance, MacGuffin, simultaneously both marking those who have been compromised in the [...]