The figures looked more or less human. And they were engaged in religion. You could tell by the knives (it’s not murder if you do it for a god).
—(Terry Pratchett, Small Gods)
The lengthy process to do something necessary or a magical scroll needed is inscribed on the other side of a great tapestry and can't be removed. For more fun it could be in the kings throne room. Try to hide in shadows with a 20*5 (yards/meters) monstrosity!