Tentatively titled, "The Solomon Key," the book seems set to follow the same pattern as "Da Vinci," with mysterious "facts" intermixed with the fiction. The author's Web site indicates that "Solomon" will focus on the mysteries of Freemasonry in the United States and how they are involved with the country's early history. Hints left by the author in various interviews cite the architecture of Washington DC and the CIA Headquarters in Langley, Virginia as key elements in the plot. The release date is tentatively set at December 30, 2008.