Inferno by Dan Brown

Harvard symbologist Robert Langdon wakes up in a hospital in Florence with no clear memory of how he got there. When he discovers a mysterious clue connected to Dante's Inferno, he is drawn into a race across Europe to unravel a dangerous puzzle.

With cryptic symbols, historical secrets and a threat that could affect millions, Langdon must piece together the truth before time runs out.

Inferno is a fast-paced thriller from Dan Brown, combining art, history, science and suspense.