Is The Da Vinci Code a priceless collection of Leonardo's original engineering works or a clever forgery? Researcher Vance Erickson is risking his life to seek the answer to this question, but he is not the only one who is haunted by the military developments of the Renaissance genius. A powerful secret brotherhood that arose at the dawn of Christianity, with their help, seeks to overthrow the world order, and here the interests of the conspirators and our heroes radically diverge. About half of this book is true. The reader is left to guess which half. One “Da Vinci” sells millions of copies, the other is known somewhat less. Lewis Perdue believes that the popular author has him to thank for his fame.