This theory was used in the film National Treasure 2: Book of Secrets, and claims that the Presidents of the United States have passed down a book from Washington to Obama, in which some or all have added facts and histories earth-shattering in scope and implications, and that this books location is only known to the President, and the National Librarian of Congress. Thus, if the President is assassinated, the Librarian informs the next President of the book. After each President leaves office, the location is changed.

This book is rumored to contain the truth about the alien landings at Roswell, NM and Rendlesham Air Base, UK, and many other UFO events; the truth about the JFK and RFK assassinations; the location of the Holy Grail (tying in with the Fort Knox conspiracy theory); the fates of various high-ranking Nazis following WWII (and the facts concerning the U. S. governments assistance of them); even the identity of the Antichrist. Assuming there is a book, and assuming it identifies the Antichrist, we are led to wonder if he and the President are on the same side, are one and the same, or whether the President fears for Earths immediate future. Even more insidious, in terms of realism, is the claim that the book told of the attacks of September 11, 2001 before they took place, and also tells of the imminent coup detat of Russia, followed by a Russo-North Korean invasion of South Korea, initiating WWIII.

This weekend President Obama got a little down time with his family in Maine, he also took the time to bring some interesting reading material. Supposedly, according to White House officials speaking on the condition of anonymity, the president removed from a secret compartment inside a White House Abraham Lincoln statute the rumored "President's Book of Secrets." Many historians and conspiracy theorists would be surprised to find out that the secret book featured in the movie "National Treasure: Book of Secrets," actually does exist. The top ten secrets believed to be in the book are listed below:

1. The Lincoln Memorial is really made out of solid gold painted white. Should the deficit hit $400 trillion dollars then it will be melted down to pay off debts.

http://theunexplainedmysteries.com/Presidents-Book-of-Secrets.html