A PageRunner is a fictional character who has illegally left their book, either to go to another book or to the RealWorld. Jurisfiction agents are allowed to leave their books to work, and so are not PageRunners. PageRunners can be tracked down with bookhounds.

They include the Minotaur and Yorrick Kaine. The Minotaur stayed mostly in BookWorld, but Kaine left to become a politician in the real world.