The book is the fourth novel in the writer's series which follows Harvard symbologist Robert Langdon.

BBC: Dan Brown: Inferno book covers revealed

Brown's fictional alter ego, Harvard symbologist Robert Langdon, is once again on the run.

WSJ: Dan Brown returns to Europe for 'Inferno'

The movie stars Tom Hanks as Robert Langdon, an American professor who, partnered with a young French cryptographer (Audrey Tautou), untangles a knot of clues.

NEWYORKER: The Da Vinci Code