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The thrilling Dirk Pitt classic from multi-million-copy king of the adventure novel, Clive Cussler.Fully armed and with all hands onboard, the nuclear submarine Starbuck sailed into the calm Pacific Ocean for sea trials - and vanished. No wreckage, no signals, no nothing...until ace maritime troubleshooter Dirk Pitt finds a single chilling clue in the shark-torn surf off Hawaii - the log of the Starbuck.'Do not search for us, it can only end in vain....'A crazed journal of madness and death is all that remains. And the captain's final scrawled, fear-crazed note locates the Starbuck's grave hundreds of miles from her last known position! The search for the Starbuck plunges Dirk Pitt into his most shattering assignment to date - a whirlpool of deep-sea mystery and terror - the Pacific Vortex!