When Digby's friend Sprite comes to visit, Fizzy casts a disappearing spell on her. When Grizel and Mungo take Spellbook it seems impossible to magic Sprite back.
A religion is a belief system with rituals. The missionary kopimistsamfundet is a religious group centered in Sweden who believe that copying and the sharing of information is the best and most beautiful that is. To have your information copied is a token of appreciation, that someone think you have done something good.