I've read all of Richard Paul Russo's books and liked them all quite well, especially his previous book, Ship of Fools. I was quite excited to read his latest, The Rosetta Codex, and I enjoyed it, but it struck me as a bit flat compared to his previous work.

In particular, it seemed like the characters were not very well-developed in this one. The main character, even though he is the focus of the book, seemed to be a bit of a cipher, and the rest of the characters never really got developed. It wasn't that they were stereotypes, just that there wasn't any time spent really delving into them. I also would have liked to have seen a bit more time spent exploring the world in which the story is set. It seemed to me that the story went a bit too directly from start to finish, and could have benefitted from a few side-jaunts.

Overall, it wasn't a bad book by any means, but it didn't quite live up to my expectations based on Russo's previous works either.