This is pretty good, by Will Adams, although I didn't enjoy it quite as much as the first one (The Alexander Cipher). Part of the reason for this is that it went off on one a bit about how you shouldn't use the Bible/Old Testament as historical evidence and complained about various theories and about populist historians. Which annoyed me a bit because it took away from the actual story. That said, it was still a pretty good example of a genre that is definitely on the small side at the moment. I know of only one other author who I would definitely put into this category (David Gibbins), and Clive Cussler is kind of half in this genre--archeological thriller.
There were some pretty good action scenes, and it was also rather fun to read about these astonishing discoveries. Naturally they supported the theory the author was most convinced by--it's sometimes more fun when they go completely off the wall. I do like the main character, he's got a bit of substance, which is more than you can say for a lot of characters in thrillers. If you enjoy the first, you'll like this one too, but it's not as good, so I suggest you read the first one first (usually a good idea within a series anyway :D).