For my future fantasy books, I am thinking of introducing a particularly dark breed of monster: the kind that is born out of incest. Unlike real life, children born of incest in my books will not be human even though their parents would be human. Instead, they will look like beasts you will only find in your most unholy nightmares. These creatures will be what they are due to their parents being exposed to byproducts of a failed magical experiment. As a result, these monstrosities will roam the corners of the Empire, attacking towns and villages where they find them. I will be drawing inspiration from a creature known as the Shtriga, which was the Albanian version of a vampire.