1. The lost Symbol:-The Lost Symbol is a 2009 novel written by American writer Dan Brown. It is a thriller set in Washington, D.C., after the events of The Da Vinci Code, and relies on Freemasonry for both its recurring theme and its major characters.
2. Inferno:-Inferno is a 2013 mystery thriller novel by American author Dan Brown and the fourth book in his Robert Langdon series, following Angels & Demons, The Da Vinci Code and The Lost Symbol. The book was published on May 14, 2013, ten years after publication of The Da Vinci Code, by Doubleday.
3. Origin:-Origin is a 2017 mystery thriller novel by American author Dan Brown and the fifth installment in his Robert Langdon series, following Inferno. The book was released on October 3, 2017, by Doubleday. The book is predominantly set in Spain and features minor sections in Sharjah and Budapest.