>"Ok, deal. a Lily for the quill. What's the code word? You gonna write it down for me and how far away can it be spoken for the quill to work?"
>"Yay!"
>She pulls out an innoculus-looking quill out of her pocket and holds it by the tip pointing straight up.
>"The code word is: Oranges are green."
>The feathery part of the quill suddenly catches on fire... a green fire.
>"Oranges are not green."
>The quill stops burning and looks exactly like it did before.
>"It has to be within hearing distance of the words for it to work. And the color doesn't have to be green, it can be any color... except orange."