The repeated mentions of Da Vinci Code notwithstanding, the book this most reminded me of was a trashy novel from an earlier generation: https://www.amazon.com/

The repeated mentions of Da Vinci Code notwithstanding, the book this most reminded me of was a trashy novel from an earlier generation: https://www.amazon.com/Word-Novel-Irving-Wallace/dp/0671211536 https://www.amazon.com/Word-Novel-Irving-Wallace/dp/06712115...