Take a look at this theory beind their methods

https://voat.co/v/pizzagate/2223089

The Strange Library, a novella by Haruki Murakami with illustrations by Chip Kidd, is an odd, beautiful little book. It tells the story of a lonely, unnamed boy who finds himself imprisoned in a labyrinth beneath a library. The boy’s captor is an old librarian who wants to eat his brains—but only after the boy has memorized the contents of three obscure and weighty tomes on the subject of tax collection in the Ottoman Empire. Two other characters are trapped in the labyrinth with the boy: one is a man dressed in a sheepskin,