The largest complex of underground factories in the world was constructed in the Kohnstein mountains. Karel Margry investigates its role in the manufacture of V1s and V2s and what now remains including the associated concentration camp ‘Dora Mittelbau’. It Happened Here – The sinking of the Blcher – Major T. G. W. Potts tells the story of the German operation in Oslo Fjord on thenight of Apirl 8, 1940. United Kingdom – Royal Gunpowder Factory Sequel – Following on from issue 93, Bryn Elliott tells the story of our efforts to mark the graves of those killed in the explosions in 1940. From Your New Editor – Karel Margry introduces himself.