Inferno by Dan Brown

Mediocre, read the others in the series before this. PW: In the heart of Italy, Harvard professor of symbology, Robert Langdon, is drawn into a harrowing world centered on one of history’s most enduring and mysterious literary masterpieces: Dante’s Inferno. Against this backdrop, Langdon battles a chilling adversary and grapples with an ingenious riddle that pulls him into a landscape of classic art, secret passageways, and futuristic science. Drawing from Dante’s dark epic poem, Langdon races to find answers and decide whom to trust...before the world is irrevocably altered.