This book . It talked about the creation of the nightcrawlers. What was widely thought as creatures that already existed was something far more sinister.
The village we were was the where the origins of these abominations were born. The villagers were vampires and were directly under the vampire kingdom. The vampire kingdom had gathered undercover scientists and placed them here along their families .
Their work was to work on a biological weapon to increase the military prowess of the Vampires.
The wall was erected to prevent them from being attacked by the great bears. There was also undercover saint realm vampires in charge of keeping the place safe. Vampires have a long lifespan so they were able to experiment on multiple things for centuries until they discovered by mixing three creatures , it would make the nightcrawlers.
