The title "Order of the Dragon" as a tetralogy with "The Bible of Darwin" (already read: super!), "The curse of Marco Polo" (which I intend to read) and "The Last Oracle" (ditto - to read) that include "Sigma" group; there are also James Rollins "Amazonia" (read: awesome) and "Mission iceberg" ... So much for the general decoration: it is not necessary to read them in chronological order, but it is desirable . A US intervention group, formed to resolve the very difficult situations (all views, including diplomatic, but not only ...), "Sigma Force" is on his first mission faced "Order dragon ", the first bombing in the cathedral of Cologne, arouses indignation at the scale of the massacre" free "committed in this religious building: the" Religion "in general (and Catholic in particular) is being part of the whole novel. James Rollins leads his reader in many European cities (the "Vatican", Milan, Avignon, Alexandria ...) with lot of action, spectacular wish: I'm never bored for a moment. Read it: you will spend you too "good" times (interspersed with acts of cruelty, you "curse" this esoteric society that did not hesitate to torture and kill for the object of his desires, I can reveal nothing! A love story, while taking shape over the plot, I prefer not to say nothing about it ... In short, you will be charmed by this story that mixes violence, mild feelings, discovery of ancient buildings is the "red thread" of the plot. I loved this book, like "The Darwin Bible" and "Amazonia" (In my reading stack are thus: "The curse of Marco Polo", "The last oracle" and "Iceberg Mission"). Thank you to James Rollins allowing us away and spend some quality reading time, I love books and I like those a "plus"! RickN.