The story behind Nightmare Creatures draws upon gothic horror elements of the 19th century and begins in 1666, when a devil-worshiping cult called the Brotherhood of Hecate were conducting sinister experiments in London so as to take over the city, and then the world.
The Brotherhood tried to develop an elixir that would endow them with superhuman powers.
However, rather than creating their intended superhumans, their experiments instead created grotesque monsters called nightmare creatures.
When they decided to use these creatures as an army of conquest, one of their members, Samuel Pepys, set their headquarters on fire, resulting in the First Great Fire of London.
