If you are a Dirk Pitt fan (I am), this newest book in the line is a pleasure and a reassurance. Classic Cussler with all sorts of bad guys and good guys (of both sexes). Dirk has moved up to management and his son and daughter are taking on the reins of most of the action. Moreover, Cussler is passing the baton to his own son Dirk in this outing which they co-authored. This looks like it’s going to be one of those attempted franchise-extenders that’s going to work. I’m looking forward to the next installment.