The Old Books

The Old Books are a set of books and texts that Kevin Thorn wrote to create the Fables Universe. It literally contain the power and history of every Fables, Literals and Mundies.

History
Before the creation of the Fables, Kevin Thorne who was the embodiment of storytelling, started to write down stories as a hobby. His stories led to the creation of the Homelands and the birth of magic. His sons Revise and Bookburner disagreed with what he had done and sought to fix and erase what he had created. They have made their own copies of these books and kept them in their libraries, but the original ones were kept by Mr. Revise.

The books, both the originals and the copies, contained immense powers. Bookburner had used it to erase Fables from existence by literally burning the books they originated from. Mr. Revise on the other hand, was the softer of the two and had used the books to reduce and revise the Fables' powers instead of outright killing them. He had use it take away the powers that some of the Fables have, create the laws of physics which eventually led to the birth of the Mundane World, and even erase Fables from existence when necessary like the Fourth Litte Pig.

The only difference in terms of powers is that Bookburner and Revise cannot use their books agaisnt each other and their respective Fable allies. Kevin Thorne on the other hand, can merely create new books whenever he wrote, and his powers over it is omnipotent to the point that he can wipe the universe clean so he can write a new one all over again.

Throughout The Jack of Fables Series
After the Bookburner's War, the old books were then transferred to Jack Horner for sake keeping. It was soon destroyed during the Finale of Jack of Fables and the results were devastating to many. The Page Sisters lost their Literal status and characters who used to be invincible such as Lady Luck (a Fable who can manipulate luck), Gary the Pathetic Fallacy (a powerful Literal) and Jack Horner (a Fable who made himself invincible through movies and deals with devils) lost their powers and were killed.