[Rory walks out of the dining hall and runs into Paris.]
RORY: God! You’re like a pop up book from hell.
A three-dimensional book, designed so that when it is opened, a scene or picture made from folded cardboard appears. They date to the Middle Ages, and were first made for adult readers – usually scholarly works, providing three-dimensional diagrams, for example. Not until the late 18th century did they begin to be made for children.