"فرشتگان و شیاطین" (Angels and Demons) is a novel by Dan Brown that explores the conflict between science and religion. The story follows Robert Langdon, a symbologist, as he uncovers a secret society known as the Illuminati and its plan to destroy the Vatican. The narrative combines historical facts with thrilling fiction, delving into themes of faith, power, and the quest for knowledge. The novel is set in Rome and features various iconic locations, including the Vatican City and the Pantheon. As Langdon races against time, he encounters a series of puzzles and symbols that lead him to uncover deeper truths about humanity's past and the ongoing struggle between good and evil.