In truth, these creatures have been called forth from hell by a bocor named Baba Lavelle. Because of their small size, Lavelle assumed were just minor demons and the portal to Hell is not yet big enough to accommodate greater entities.
In reality, these beings have been summoned from hell by a sorcerer called Baba Lavelle. Because of their small size, Lavelle believed they were only minor demons and the entrance to hell was too narrow for more significant entities.