The first castellan buried the Las Plagas deep underground below the castle to hide their very existence. But when Salazar released the Las Plagas, no one thought he could bring them back to life. Because when Salazar found them they were all just fossilized remains.

Everyone knew that the parasitic organisms
could not survive without their hosts. That they couldn't sustain life on their own. But when Salazar and his men excavated the remains, it almost appeared as if the Las Plagas were just waiting to be discovered so that they could resurrect.

Several years later, unexplainable convulsions started occurring among the villagers who helped with the excavation of the Las Plagas.