" Meeehhhh, this isn't my type of book. It's a fluff book, but I already have plenty of favorite fluff authors so I don't need another one. I can see why other people like James Rollins and his books (and I can see my dad liking this book), but I wasn't down with the whole action, running around the world for some mysterious lost treasure city, with a whole cast of adventurous people thing. I only actually liked Painter Crowe, and would have been okay reading other books in the Sigma series if they only followed his story, but I've been told the other books follow different people in the Sigma group. "
— Michelle, 2/18/2014