L'ultimo mistero

Martin Mystère faces the adventure that definitively closes the accounts between him and those nostalgic for the Third Reich. 'Operation Walhalla' was the code name for a Nazi plan to make use of 'magical' weapons; one of these supernatural threats is still active: the vril, a sort of elixir of life, responsible during the Second World War for the creation of an army of invincible soldiers who, today, could conquer the world!