Angels & Demons is another thrilling conspiracy mystery novel by Dan Brown, featuring the protagonist Robert Langdon. In this book, Langdon is summoned to investigate a murder at CERN, the renowned scientific research facility in Switzerland. As he unravels the clues, Langdon discovers a sinister plot by an ancient secret society known as the Illuminati. With time running out, Langdon must race against the clock to prevent a catastrophic event that could devastate Vatican City. Angels & Demons is a gripping page-turner that combines science, religion, and suspense in a masterful way.