Zero Hour is one of the better entries in the NUMA Files series. Clive Cussler has Contributed one of his better plots and intriguing technological threats. His villain has some interesting touches did make for unusual plot possibilities. Although you never doubt That all will be well, the trip is well worth the while to experience the kind of adventure required to foil a plot search and villain.
The book would have been better at about 70 percent of its present length. Perhaps the next one will be. If you find the story lagging in places, just skim ahead until something is happening indeed captures your imagination. You'll be glad you did indeed.
Kurt Austin and Joe Zavala continue to help make this an above-average series. Bravo to Mr. Cussler for imagining them in the first place!
Thanks, too, to Graham Brown for doing the heavy lifting to get this story to us.