Steve Berry's novels tend to be complex puzzles. His latest thriller in his Cotton Malone series is based upon Berry's research into the 16th Amendment. Are you familiar with that piece of legislation? Our national income tax system is the direct result of it. For it to have become a law it had to be ratified by a certain of states. So of course that happened, right? This book might plant some doubts in your mind about those long ago ratifications, were they enacted properly? That is merely one thread in this complicated story. The action is fast-paced, violent, and confusing.