Instruct: Classify Amazon reviews into positive or negative sentiment
Query: One of Cussler's weaker works

I have to concede that I am relatively new to Clive Cussler and have only read six of his books, all of which are Dirk Pitt adventures written solely by the great man himself. I had high hopes for this novel, having come off a fabulos run of previous Cussler novels including some earlier works, but sadly it was a disappointment. The key issue being that the book lacked the chemistry created by the Dirk Pitt and Al Giordina banter and schtick. The other wearing aspect of the novel was Pitt camping it up to ensure the antagonist underestimated him. That might have been fine 20-30 years ago, but reading this type of plot device today seems dated. Another example is the way in which the female character (Tiddi) was written (i.e. as a weak dumb woman). Having said this there is a nice twist at the end, which I quite enjoyed. Probably only one for diehard Cussler fans.