Long hailed as the grand master of adventure fiction, Clive Cussler has continued to astound with the intricate plotting and astonishing set pieces of his novels. Now, with a surprising twist, he gives us his most audacious work yet.

In the final pages of Valhalla Rising, Dirk Pitt discovered, to his shock, that he had two grown children he had never known-twenty-three-year-old fraternal twins born to a woman he thought had died in an underwater earthquake. Both have inherited his love of the sea: the girl, Summer, is a marine biologist; the boy, himself named Dirk, is a marine engineer. And now they are about to help their father in the adventure of a lifetime.

There is a brown tide infesting the ocean off the shore of Nicaragua. The twins are working in a NUMA(r) underwater enclosure, trying to determine its origin, when two startling things happen: Summer discovers an artifact, something strange and beautiful and ancient; and the worst storm in years boils up out of the...

Adventure tales for boys (and girls) of all ages have no more vigorous champion today than Cussler, who has kept the spirit of Joe and Frank Hardy alive, albeit on a grander scale, in numerous bestsellers. This 17th Dirk Pitt extravaganza finds Cussler (literally, as he makes a cameo at book's end) and his entourage of paint-by-number characters in fine fettle, foiling a dastardly plot by outlandish villains to launch a new ice age, and at the same time demonstrating that the Achaeans were not Greeks but Celts, and that Troy was a town in what's now England. After a prelude set during the Trojan War, the novel proper starts with a roar, as a monstrous hurricane sweeps toward the Caribbean, endangering not only Pitt's twin son and daughter, engaged in undersea exploration, but also the Ocean Wanderer, a luxury floating hotel owned by a mysterious billionaire known as Specter. In a manly manner, Pitt and his longtime sidekick, Al Giordino, both of NUMA (the National Underwater and Marine Agency), save the hotel and Pitt's grown kids, but not before those kids discover a trove of underwater relics that indicate that the Celts, aka Achaeans, reached the New World millennia ago. And the Celts are still here, in the guise of a female Druidic cult linked to Specter and aiming for world domination by altering ocean currents via a vast underground mechanism in Nicaragua, which will plunge the earth into cold, then selling a new type of cheap fuel cell to supply needed heat. The action never flags, the heroics never halt and the bodies pile up as Pitt and Co. take on the villains; some big changes in Pitt's personal life close the book. Cussler's legions of fans are going to march into bookstores the day this title appears; expect whopping sales. 750,000 first printing; $750,000 ad/promo. (Nov.) Copyright 2003 Reed Business Information.