I loved this book so much.
I couldn't stop reading after the first chapter. It's engaging and the mystery is so well done.
I liked the idea of mixed race twins , the description of Paris , all the small details from the taxi drive to the hotel, cafeteria and every shop or surrounding. The underworld as well because we often don't get to much insight about one of the most visited city in the world.
As for the story itself, it's full of mystery and will keep you on the edge until you finished the last page.
I'm recommending this great book to all mystery/thrillers lovers.