Those pesky Chinese are at it again. In the gripping techno-thriller sequel to Robinson's Nimitz Class (1997), the genre's new most favored villains have bought a number of highly capable, stealthy ""kilo class"" submarines from Russia to use as a threat against Taiwan. Navy Commander Cale ""Boomer"" Dunning, skipper of the nuclear-powered sub Columbia, is tapped to seek out and destroy the Kilos before the Chinese can take delivery. His assignment involves much derring-do, including a vividly described SEAL mission and a hair-raising transoceanic passage under the polar ice cap. Although Robinson excels in describing action scenes and armaments, careless writing and an abandoned subplot involving a hijacked researched vessel mar his tale. So does the smug assumption that our military knows best when to attack ships of another nation. Nevertheless, this is a sure hit for fans of military and adventure fiction. (May) FYI: Nimitz Class is currently in production with Universal Studios.