"Attic? You mean the altar room, don't you? The rules are very clear: every witch must keep their Book of Shadows in a sacred and protected spot."
Natalie mentioning the rule of altar rooms to Prue and Piper Halliwell.[src]

An Altar Room is a sacred and protected spot where good witches are supposed to keep and use their Book of Shadows, at least according to Natalie. However, not all witches use an altar room.

The Elders wrote a rule that all witches keep their books in this sacred room and Whitelighters are to ensure that this dictate is followed.[1] However, Leo Wyatt neglected to tell that to the Charmed Ones, who kept their book in their attic.


  1. Mentioned in season 3 episode, "Blinded by the Whitelighter"