Robert Langdon, the Harvard professor whose impressive cognitive abilities was put through their paces in Angels and Demons and then The Da Vinci Code, finds himself at the centre of another mystery. This time, it involves the kidnapping of his close friend, Peter Solomon, a renowned member of the Freemasons. Along with Peter’s scientist sister Katherine, Langdon must piece together the fragmented clues to get Solomon’s abductor the information he strives, if he wishes to see his friend alive again.
