With these words echoing in his head, eminent Harvard symbologist Robert Langdon awakes in a hospital bed with no recollection of where he is or how he got there. Nor can he explain the origin of the macabre object that is found hidden in his belongings. A threat to his will propel him and a young doctor, Sienna Brooks, into a breakneck chase across the city of Florence. Only Langdon's knowledge of the hidden passageways and ancient secrets that lie behind its historic facade can save them from the clutches of their unknown pursuers.