About the Book: While in Prague, Harvard professor Robert Langdon’s world is turned upside down when his love interest, Katherine Solomon, vanishes from their hotel room. Out of his element and in a city steeped in dark history and mystery, Langdon must use his arcane knowledge to navigate a treacherous labyrinth of deception and folklore. He is being stalked by a shadowy figure from Prague’s past and must decipher the city’s ancient secrets, hidden within its castles, churches, and underground passages. Langdon soon realizes he’s not just fighting for Katherine’s life but for the future of humanity itself.