Warplanes: WW2 Dogfight. Accounts appeared as early as 1950, likely inspired by historical German development of specialized engines such as Viktor Schauberger's "Repulsine" around the time of World War II. Elements of these claims have been incorporated into various works of fictional and purportedly non-fictional media, including video games and documentaries, often mixed in with more substantiated information. German UFO literature very often conforms largely to documented history on the following points: Nazi Germany claimed the territory of New Swabia in Antarctica, sent an expedition there in 1938, and planned others. Nazi Germany conducted research into advanced propulsion technology, including rocketry, Viktor Schauberger's engine research, Horten flying wing craft, and the Arthur Sack A.S.6 experimental circular winged aircraft. The Morning of the Magicians Le Matin des Magiciens ("The Morning of the Magicians"), a 1960 book by Louis Pauwels and Jacques Bergier, made many spectacular claims about the Vril Society of Berlin. Several years later, writers, including Jan van Helsing, Norbert-Jürgen Ratthofer, and Vladimir Terziski, have built on their work, connecting the Vril Society with UFOs. Among their claims, they imply that the society may have made contact with an alien race and dedicated itself to creating spacecraft to reach the aliens. In partnership with the Thule Society and the Nazi Party, the Vril Society developed a series of flying disc prototypes. With the Nazi defeat, the society allegedly retreated to a base in Antarctica and vanished into the hollow Earth to meet up with the leaders of an advanced race inhabiting inner Earth. The works of Ernst Zündel When German Holocaust denier Ernst Zündel started Samisdat Publishers in the 1970s, he initially catered to the UFOlogy community, which was then at its peak of public acceptance. His books claimed that flying saucers were Nazi secret weapons launched from an underground base in Antarctica, from which the Nazis hoped to conquer the Earth and possibly the planets. Zündel also sold (for $9999) seats on an exploration team to locate the polar entrance to the hollow earth. Some who interviewed Zündel claim that he privately admitted it was a deliberate hoax to build publicity for Samisdat, although he still defended it as late as 2002. Miguel Serrano's book In 1978, Miguel Serrano, a Chilean diplomat and Nazi sympathizer, published , in which he claimed that Adolf Hitler was an Avatar of Vishnu and was, at that time, communing with Hyperborean gods in