Cussler and Brown pack Zero Hour with action, humor, a psycho with a split personality trying to get revenge by ending the world with zero point energy. All our favorite characters are in this one: Kurt Austin, Dirk Pitt, James Sandecker, Joe Zavala, Hiram Yaeger, Paul and Gamay Trout.
As always, Kurt gets in trouble but manages to get out of it with his off the cuff schemes and, with Joe, saves the day. Hiram has now get more computer genius with virtual reality and fact finding, even, again, logging onto supposedly secure and off limits sites. Thero, the villain, has a split personality of both father and son (who was killed) with the father wanting revenge and the son wanting to stop him.
Real action and a plausible scenario. This is the third book that Cussler writes with Graham Brown and all three are excellent. I am a fan of Graham Brown's sole writing also, having read his Black Rain and Black Sun. The only thing I missed was Cussler himself popping up as a character in the book!