In recent years, the city of Kretsch has become a center of technological progress. The world was stuck in the dark ages, and only the inhabitants of Kretch managed to break out into the industrial age. When the church is looking for sorcerers and witches everywhere, industrialists are building factories and railroads. When steel sparkles on battlefields all over the world, gunpowder and guns are produced in Kretsch. The fog-shrouded streets hide many secrets. Intelligence agencies of many countries are fighting for the right to own dangerous technologies. Aristocrats intrigue, and revolutionaries rise up in poor areas. Meanwhile, the city is shaken by a series of mysterious murders. Somewhere in his very heart, an unimaginable ancient evil awakens.