Robert Langdon receives a sudden invitation from his mentor, Peter Solomon, to deliver a lecture at the United States Capitol. Along with the invitation, comes a strange request: to bring along the package Solomon had put under seal and into Langdon's secure possession ages ago. However, when Langdon arrives at the Capitol, a horrific sight confronts him. The severed right hand of his mentor is placed on display as a part of the famous Hand of Mysteries, housed in the Capitol Rotunda. Soon, Langdon realizes that the invitation is a trap. Solomon, the head of the Smithsonian Institution, has been kept hostage by the tattooed, vicious-looking Mal'akh. The villainous voice sets Langdon on a clock to find the Mason's Pyramid and the 'Lost World'. As Langdon sets forth to do the seemingly impossible, guided by the CIA chief, Inoue Sato, he is faced with a hundred another struggles. The third book in the Robert Langdon series by creator Dan Brown, 'The Lost Symbol' features one of the writer's most fearsome antagonists. A page-turner, set with a twisting plot and Brown's quintessential chases, the story develops at a quickened pace. As the Harvard professor of iconology and symbology discovers hidden pathways and tunnels within Washington D.C. to find century-old hidden truths, the readers are given an exciting storyline to follow and remember.