In Dan Brown's 2009 thriller The Lost Symbol, Harvard symbologist Robert Langdon is lured to the U.S. Capitol in Washington, D.C., where his mentor, Freemason Peter Solomon, is kidnapped. Langdon races against time through Masonic landmarks to decode an ancient portal revealing hidden human potential and esoteric wisdom
Dan Brown
Daniel Gerhard Brown (born June 22, 1964) is an American writer best known for his thriller novels, particularly the Robert Langdon series Angels & Demons (2000), The Da Vinci Code (2003), The Lost Symbol (2009), Inferno (2013), Origin (2017) and The Secret of Secrets (2025). His novels are treasure hunts that usually take place over a 24-hour period and center on recurring themes of cryptography, art, and conspiracy theories.
Brown's books have been translated into 57 languages and have sold over 200 million copies as of 2012. Three of his works—Angels & Demons, The Da Vinci Code, and Inferno—have been adapted into films, while one, The Lost Symbol, was adapted into a 2021 television series.
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