From the horrors of war at sea comes the legend of an unsinkable cat, who dodged both Nazi and British guns. 'Unsinkable Sam' is a story from World War 2 in which a black and white cat named Sam is supposed to have survived three dreadful sinkings, including that of the Nazi ship the Bismarck. For history scholars, his story appears to be no more than the stuff of legend, but whispers of his tale have lingered. Bismarck became embroiled in a fierce battle with the Royal Navy in May 1941, aiming to play a key part in the naval...