In Autumn 1943, the Battle of the Atlantic reaches a new crescendo. Aircraft and new weaponry dominate a seascape where German U-boats once ruled. But unexpectedly, in eerie Hallowe'en darkness, an elemental hull-to-deck, sailor-to-submariner duel erupts. Outmoded U.S. Navy destroyer Borie, setting out alone on Hallowe'en 1943, traps a U-boat on the surface. On impulse, Borie's young untested skipper resorts to the original and for a time the only means of sinking a submarine: ramming, full speed ahead. Borie's collision with U-405 ignites a swashbuckling brawl of cannons, machine guns, small arms, even knives and spent shell-casings. In the wreckage strewn aftermath, desperate sailors on both sides fight for survival in a heaving, frigid, unforgiving sea. Duel in the Deep weaves high-stakes strategy and lethal gamesmanship with poignant human backstories, pounding air/surface/subsurface action and wrenching sacrifice. A seasoned author, widely published military historian and former U.S. Navy officer portrays a rousing high-seas showdown.