World War III rages on . . . "The duel between submarines and captains should keep readers flipping pages, especially if they love undersea action." — Booklist The Axis and Allied powers are recovering from a violent encounter between a German nuclear-powered fast-attack submarine and the USS Challenger , commanded by Captain Jeffrey Fuller. But the war has only begun . . . Reactionary enemy regimes have brutally taken command in South Africa and Germany. U.S. and European shipping lanes are suddenly under attack. World War is at hand—and for the ruthless Berlin–Boer Axis, the devastating weapons of choice will be tactical nukes used at sea. The Voortrekker , a deep-diving state-of-the-art German submarine, is on the prowl, carrying more onboard firepower than many of the world's nations possess—and the crippled sub USS Challenger is the only weapon in America's arsenal that can match up with the silent killer. But the nation's last hope is in dry dock—and Captain Jeffrey Fuller, Challenger 's brilliant, driven skipper, must get his damaged boat back in action weeks before it is battle-ready. Fuller has faced Voortrekker in the past and, unlike so many others, he survived. This time, however, the fight will take place in waters far too deep for a normal sub to withstand. And this time the prize will be America. Praise for the Jeffrey Fuller series "The crème de la crème of submarine thrillers." —Stephen Coonts, New York Times –bestselling author "If you want a hair-raising trip to the bottom of the ocean, Joe Buff's the guy to take you there." —Patrick Robinson, New York Times –bestselling author "[Joe Buff] out-Clancys Tom Clancy." — Kirkus Reviews