On a dark night, darkness crept into a quiet city.The windows of the houses opened with an incomprehensible flash, revealing unfamiliar shapes.Residents were shocked by the appearance of a strange ball of light in the sky, emitting mysterious and frightening sounds.The pale faces were reflected in the windows of the houses, and quickly faded into the darkness.The rain turned into a strange-colored liquid, flowing like blood, giving the night a frightening glow.