What is the theme in The Creature from Jekyll Island: A Second Look at the Federal Reserve by G. Edward Griffin?

Conspiracy is a main theme in the book. The author interpreted historical events as indicating a grand conspiracy starting in 1910 with the Jekyll Island secret meeting. His writing style dramatically portrayed the meeting as it might have happened through the use of imagery and descriptions usually found in fiction. The central idea to the theme was that powerful financiers controlled politicians during wartime. Some of the manipulations had been determined, such as Churchill's involvement with the sinking of the Lusitania in order to draw the US into World War I. Other manipulations were speculations from the outcomes of certain situations such as the establishment of central banks.