The entire continent was shrouded in darkness, as the night sky was the only source of light. It was quiet, too quiet, as if the entire world was holding its breath. Suddenly, a loud explosion shattered the silence, followed by many more. The earth shook violently, buildings trembled, and the ground cracked open in numerous places.
People came out of their houses, bewildered and frightened. They looked up to the sky and saw several portals opening up, one after the other. From these portals, hordes of monsters emerged, pouring into the streets of towns and cities, destroying everything in their path. The monsters were huge, with razor-sharp teeth and claws, their eyes gleaming with hunger and malice.