The Ottoman Secret has a knowingly clever premise, and wears its smartness on its sleeve. If you like a lot of syllables to your sentences, and you were much fonder of The Da Vinci Code than you’re prepared to publicly admit, this could be your book of the year. But I don’t think the characters have been crafted carefully enough to hold up a slightly preposterous plot. The book is bloated where it needs to be tight and tense. In a sense, it succeeds in allowing its readers to experience time travel alongside its mysterious antihero. By the time you finish, you may well feel as though you’ve been reading since 1682.