Edwyn Gray Related books Hitler's battleships Naval Inst Pr • 1999 No Survivors Wolfpack Publishing • 2018 SUBMARINE WARRIORS Presidio Pr • 1988 The Devil's Device Naval Inst Pr • 1991 The Killing Time: The German U-Boats 1914-1918 Scribner • 1972 The underwater war; submarines, 1914-1918 Scribner • 1972