EXETER, N.H. — American author Dan Brown believes Japanese readers will be sucked in by his latest novel, "The Lost Symbol," because it is a mystery that delves into the secret world of Freemasons.

Rumored to be members of this fraternal organization are some of the world's most powerful figures and many notable ones.

At least 14 American presidents, including George Washington, Theodore Roosevelt and Gerald R. Ford, and high-profile businessmen, scientists, entertainers and artists have been part of the exclusive club, which few outsiders know much about.