Inferno

I no longer read Dan Brown books for the thrill or suspense – once you read a couple of books, you know what to expect, and the “thrill” is practically non-existent. On the other hand, a Dan Brown book will add one more book to your “have-read” list and give a good boost to your bag of trivia; all this with minimal cognitive expenditure. That's some decent returns for the time and effort you spend, I'd say.