The Da Vinci Code

Is it from The Da Vinci Code?

Renowned curator Jacques Saunière staggered through the vaulted archway of the museum's Grand Gallery.  He noticed there was something wrong with the picture of Mona Lisa. He looked closer at the picture and noticed what looked like little letters. (He had very good eyesight.) 

    "Magnifying glass," He said to himself. He looked closer and sure enough there where letters in it. Later to be called The Da Vinci Code 

A handful of years later  

"That Jacques Sauniere was a genius," A man said as he stared at the painting. "A total genius." 

(Sorry, I don't know much about The Da Vinci Code)