"This convoy must not get through-U-boats pursue, attack and sink." This was the signal that Admiral Dönitz sent to the commanders of the 21 U-boats of the Markgraf wolf-pack on September 9, 1941 just before the United States entered the war. Sixty-three merchant ships; a number old and dilapidated and all slow and heavy-laden with vital supplies from the United States for the United Kingdom, were strung out in 12 columns abreast, covering 25 miles of inhospitable ocean. They set sail from Nova Scotia at a time when the German U-boats were sinking more than one hundred ships a month and the US Navy could do nothing but stand-by and watch-at least officially. "Around noon, the three US destroyers, Charles F. Hughes, Rus­sell and Sims, wheeled away and made off to the west at speed. The American ships had served their purpose, for although they had taken great pains not to be associated with SC42's official escort, the mere presence of these modern, powerful men-of-war had con­tributed to the withdrawal of the U-boats." The convoy's escort of one destroyer and three corvettes of the Royal Canadian Navy, all untried in combat, was hopelessly outclassed when the battle for SC42 commenced. The battle lasted for seven days and covered 1,200 miles of ocean. First hand accounts by participants on both sides add interest and drama. With 37 years at sea under his belt, Captain Bernard Edwards has over ten titles in print including SOS-Men Against the Sea, Blood & Bushido, Return of the Coffin Ships, and Salvo! A resident of Wales, Captain Edwards is close to the sea he writes about. His lifetime experience at sea enables him to add authentic touches and bring official reports to life.