I love Clive Cussler books - lots of action, but lots of history thrown in, too. This series of Cussler's books is all about Dirk Pitt, who works as an underwater researcher and has lots of adventures involving old ship wrecks and archaeological finds. What makes these books a little better than the average action adventure books is his attention to historical detail. He obviously loves everything about the sea himself, and it comes through in his books. This particular book is very good because Dirk Pitt is maturing as the series moves on, and there is a nice surprise at the end which sets up further books. All in all a very enjoyable experience!