Ice-covered Svalbard became a part of German "holy" land at the beginning of WW2. What the Germans really did there has remained a mystery. In fact, the Allies had tracked the abnormal density of German warships in the Far North, but they connected that traffic with their own convoy activity. The British had their chance to open up the secrecy in 1943. Then a Catalina flying boat flew over the Spitsbergen. To the great surprise of the pilots they...