Novel-1 : Angels & Demons (is a 2000 bestselling mystery-thriller)
Robert Langdon (A professor of Symbology at Harvard University) is flown to CERN to help investigate the murder of Leonardo Vetra (A scientist working at CERN and a priest researching on antimatter).
Robert Langdon tells Vittoria Vetra (The adopted daughter focus her research focuses on biology and physics) how the Illuminati created a citywide map known as the Path of Illumination, a trail once used by the Illuminati as a means of inducting new members; aspirants who wanted to join the Illuminati were required to follow a series of subtle clues left in various churches in and around Rome. The clues indicate the secret meeting place of the Illuminati.
The Path leads Langdon and Vittoria to four churches in Rome, each one representing works of art by Baroque artist Gian Lorenzo Bernini which are associated with one of the primordial elements: Earth, Air, Fire and Water.
Novel-2 : The Da Vinci Code (is a 2003 mystery-detective worldwide bestseller)
Symbologist Robert Langdon and Police Cryptologist Sophie Neveu, become involved in a battle between the Priory of Sion and Opus Dei over the possibility of Jesus Christ having been married to Mary Magdalene. The title of the novel refers, among other things, to the finding of the first murder victim in the Grand Gallery of the Louvre, naked and posed similar to Leonardo da Vinci’s famous drawing, the Vitruvian Man, with a cryptic message written beside his body and a pentagram drawn on his chest in his own blood.
The novel explores an alternative religious history, whose central plot point is that the Merovingian kings of France were descended from the bloodline of Jesus Christ and Mary Magdalene; provoking a popular interest in speculation concerning the Holy Grail legend and Mary Magdalene’s role in the history of Christianity.
Novel-3 : The Lost Symbol (is a 2009 fastest selling adult thriller novel in history)
Harvard symbologist Robert Langdon is invited to give a lecture at the United States Capitol, at the invitation apparently from his mentor, a 33rd degree Mason named Peter Solomon, who is the head of the Smithsonian Institution. Solomon has also asked him to bring a small, sealed package which he had entrusted to Langdon years earlier. When Langdon arrives at the Capitol, however, he learns that the invitation he received was not from Solomon, but from Solomon’s kidnapper, Mal’akh posing as Solomon’s assistant, who has left Solomon’s severed right hand in the middle of the Capitol Rotunda in a recreation of the Hand of Mysteries. Mal’akh then contacts Langdon, charging him with finding both the Mason’s Pyramid, which Masons believe is hidden somewhere in Washington, D.C.
Novel-4 : The Lost Symbol (is a 2013 mystery thriller & number one on the New York Times Best Seller list for hardcover fiction)
Harvard University professor Robert Langdon wakes up in a hospital with a head wound and no memory of the last few days. His last memory is walking on the Harvard campus, but he quickly realizes that he is now in Florence. Sienna Brooks, one of the doctors attending to him, tells him he suffered a concussion from being grazed by a bullet and had stumbled into the emergency ward. Suddenly, Vayentha, a female assassin who has been following Robert Langdon, breaks into the hospital, shoots the doctor in charge of Robert’s care and approaches Robert’s room. Sienna grabs Robert and they flee to her apartment.
After Sienna recounts the details of his admission to the hospital, Robert finds a cylinder with a biohazard sign in his jacket and decides to call the U.S. consulate. He is told that they are searching for him and want his location. Per Sienna’s guidance, Robert gives them a location across the street from Sienna’s apartment to avoid getting Sienna more involved in his mysterious situation than she already is. Soon, Robert sees Vayentha, who is armed, pull up to the location Robert gave the consulate. At this point, Sienna and Robert believe the U.S. government wants to kill him.
Robert decides to open the container and finds a small medieval bone cylinder fitted with a hi-tech projector that displays a modified version of Botticelli’s Map of Hell, which itself is based on Dante’s Inferno. At the bottom of the illumination are the words, “The truth can be glimpsed only through the eyes of death.” Suddenly, soldiers raid Sienna’s building; Sienna and Robert narrowly escape.