A lone figure stood on the rooftops, staring silently across the horizon. It cast a long shadow as the moon, low in the sky, illuminated the city below. It stood there unmoving. The streets below was silent, save for the occasional clatter of a late-night cart passing along the cobblestones beneath.
    A moment passed, and then, the figure's head turned slightly.
    “I know you're there”, spoke the figure.
    The voice was calm and steady but the words were as quiet as a whisper. They traveled through the cold night air, apparently to no recipient. The wind blew across the rooftops sending a chill through the air, blowing the smoke silently away from the stacks of chimneys on the buildings.
    Then suddenly, the figure ran.
    It moved quickly across the rooftops, hardly making a sound along the tiled roofs. Behind it, the smoke from the chimneys seemed to become heavier and darker. It started to gather together, swirling and moving across the rooftops towards the figure. Slowly, but surely, it grew and picked up speed.
    The figure continued to run, cloth rags streamed like scarfs in the wind. Behind it, the smoke swirled together forming a dense cloud and kept following, gathering speed all the time, black smoke trailing from it. It reached a gap between the roofs and jumped, landing softly on the next and continued running without pause. More clouds appeared behind it, streaming across the rooftops, moving much faster this time, and becoming larger and darker.
    The silent chase continued ignored by the city below, lit only by pale moonlight. The figure ran, clearing rooftops and chimneys, as well as signs and railings and the smoke clouds followed, floating silently over obstacles and moving towards it. Birds scattered as the ragged figure landed next to them and it took flight again. There were many more clouds of smoke following now, some twisting and turning and forming almost visible shapes inside the cloud of black.
    Suddenly the figure stopped. Below was the faint trickling of the river below, just under the rooftop. There was nowhere to go, except back towards the approaching clouds of black. On the other side were more buildings, but it was too far to reach. The water streamed along underneath, reflecting the clear starry sky back up.
    The wind stopped and the rags around the figure fell as it turned around.
    The smoke hung menacingly around, stationary in he air. Suddenly, they exploded. The smoke billowed out from every cloud, creating a wall of darkness that blocked the light from the moon.