Like every Dan Brown Novel this too had a heroine with super human IQ. Like every other Langdon book, the professor is clueless and is continent hopping on a trail of clues. Like every Dan Brown book, the world will end... I can understand writing in your comfort zone but honestly, that feeling of Deja Vu kills it. If I wanted to read the same thing, I'd pick my well read copy of the Da Vinci code again.
I know how tough it is to write a story. I know it is even tougher to write a book. Trust me, I have tried. As a result I have great respect for whoever manages to complete the book. And Dan Brown is a brilliant writer. His books have the twists and turns that keep the readers on the edge. Just wish he'd develop characters outside his preset moulds.